21816270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 72394560

約数和(自身を除く): 50578290

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 45, 49, 51, 54, 63, 70, 85, 90, 97, 98, 102, 105, 119, 126, 135, 147, 153, 170, 189, 194, 210, 238, 245, 255, 270, 291, 294, 306, 315, 357, 378, 441, 459, 485, 490, 510, 582, 595, 630, 679, 714, 735, 765, 833, 873, 882, 918, 945, 970, 1071, 1190, 1323, 1358, 1455, 1470, 1530, 1649, 1666, 1746, 1785, 1890, 2037, 2142, 2205, 2295, 2499, 2619, 2646, 2910, 3213, 3298, 3395, 3570, 4074, 4165, 4365, 4410, 4590, 4753, 4947, 4998, 5238, 5355, 6111, 6426, 6615, 6790, 7497, 8245, 8330, 8730, 9506, 9894, 10185, 10710, 11543, 12222, 12495, 13095, 13230, 14259, 14841, 14994, 16065, 16490, 18333, 20370, 22491, 23086, 23765, 24735, 24990, 26190, 28518, 29682, 30555, 32130, 34629, 36666, 37485, 42777, 44523, 44982, 47530, 49470, 57715, 61110, 69258, 71295, 74205, 74970, 80801, 85554, 89046, 91665, 103887, 112455, 115430, 128331, 142590, 148410, 161602, 173145, 183330, 207774, 213885, 222615, 224910, 242403, 256662, 311661, 346290, 404005, 427770, 445230, 484806, 519435, 623322, 641655, 727209, 808010, 1038870, 1212015, 1283310, 1454418, 1558305, 2181627, 2424030, 3116610, 3636045, 4363254, 7272090, 10908135, 21816270]

約数ペア:

[(1, 21816270), (2, 10908135), (3, 7272090), (5, 4363254), (6, 3636045), (7, 3116610), (9, 2424030), (10, 2181627), (14, 1558305), (15, 1454418), (17, 1283310), (18, 1212015), (21, 1038870), (27, 808010), (30, 727209), (34, 641655), (35, 623322), (42, 519435), (45, 484806), (49, 445230), (51, 427770), (54, 404005), (63, 346290), (70, 311661), (85, 256662), (90, 242403), (97, 224910), (98, 222615), (102, 213885), (105, 207774), (119, 183330), (126, 173145), (135, 161602), (147, 148410), (153, 142590), (170, 128331), (189, 115430), (194, 112455), (210, 103887), (238, 91665), (245, 89046), (255, 85554), (270, 80801), (291, 74970), (294, 74205), (306, 71295), (315, 69258), (357, 61110), (378, 57715), (441, 49470), (459, 47530), (485, 44982), (490, 44523), (510, 42777), (582, 37485), (595, 36666), (630, 34629), (679, 32130), (714, 30555), (735, 29682), (765, 28518), (833, 26190), (873, 24990), (882, 24735), (918, 23765), (945, 23086), (970, 22491), (1071, 20370), (1190, 18333), (1323, 16490), (1358, 16065), (1455, 14994), (1470, 14841), (1530, 14259), (1649, 13230), (1666, 13095), (1746, 12495), (1785, 12222), (1890, 11543), (2037, 10710), (2142, 10185), (2205, 9894), (2295, 9506), (2499, 8730), (2619, 8330), (2646, 8245), (2910, 7497), (3213, 6790), (3298, 6615), (3395, 6426), (3570, 6111), (4074, 5355), (4165, 5238), (4365, 4998), (4410, 4947), (4590, 4753)]