21688590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 66769920

約数和(自身を除く): 45081330

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 41, 42, 55, 66, 70, 77, 82, 105, 110, 123, 154, 165, 205, 210, 229, 231, 246, 287, 330, 385, 410, 451, 458, 462, 574, 615, 687, 770, 861, 902, 1145, 1155, 1230, 1353, 1374, 1435, 1603, 1722, 2255, 2290, 2310, 2519, 2706, 2870, 3157, 3206, 3435, 4305, 4510, 4809, 5038, 6314, 6765, 6870, 7557, 8015, 8610, 9389, 9471, 9618, 12595, 13530, 15114, 15785, 16030, 17633, 18778, 18942, 24045, 25190, 28167, 31570, 35266, 37785, 46945, 47355, 48090, 52899, 56334, 65723, 75570, 88165, 93890, 94710, 103279, 105798, 131446, 140835, 176330, 197169, 206558, 264495, 281670, 309837, 328615, 394338, 516395, 528990, 619674, 657230, 722953, 985845, 1032790, 1445906, 1549185, 1971690, 2168859, 3098370, 3614765, 4337718, 7229530, 10844295, 21688590]

約数ペア:

[(1, 21688590), (2, 10844295), (3, 7229530), (5, 4337718), (6, 3614765), (7, 3098370), (10, 2168859), (11, 1971690), (14, 1549185), (15, 1445906), (21, 1032790), (22, 985845), (30, 722953), (33, 657230), (35, 619674), (41, 528990), (42, 516395), (55, 394338), (66, 328615), (70, 309837), (77, 281670), (82, 264495), (105, 206558), (110, 197169), (123, 176330), (154, 140835), (165, 131446), (205, 105798), (210, 103279), (229, 94710), (231, 93890), (246, 88165), (287, 75570), (330, 65723), (385, 56334), (410, 52899), (451, 48090), (458, 47355), (462, 46945), (574, 37785), (615, 35266), (687, 31570), (770, 28167), (861, 25190), (902, 24045), (1145, 18942), (1155, 18778), (1230, 17633), (1353, 16030), (1374, 15785), (1435, 15114), (1603, 13530), (1722, 12595), (2255, 9618), (2290, 9471), (2310, 9389), (2519, 8610), (2706, 8015), (2870, 7557), (3157, 6870), (3206, 6765), (3435, 6314), (4305, 5038), (4510, 4809)]