21873390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:602

約数の個数: 128

約数和(自身を含む): 69424128

約数和(自身を除く): 47550738

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 17, 21, 22, 30, 33, 34, 35, 42, 51, 55, 66, 70, 77, 85, 102, 105, 110, 119, 154, 165, 170, 187, 210, 231, 238, 255, 330, 357, 374, 385, 462, 510, 557, 561, 595, 714, 770, 935, 1114, 1122, 1155, 1190, 1309, 1671, 1785, 1870, 2310, 2618, 2785, 2805, 3342, 3570, 3899, 3927, 5570, 5610, 6127, 6545, 7798, 7854, 8355, 9469, 11697, 12254, 13090, 16710, 18381, 18938, 19495, 19635, 23394, 28407, 30635, 36762, 38990, 39270, 42889, 47345, 56814, 58485, 61270, 66283, 85778, 91905, 94690, 104159, 116970, 128667, 132566, 142035, 183810, 198849, 208318, 214445, 257334, 284070, 312477, 331415, 397698, 428890, 520795, 624954, 643335, 662830, 729113, 994245, 1041590, 1286670, 1458226, 1562385, 1988490, 2187339, 3124770, 3645565, 4374678, 7291130, 10936695, 21873390]

約数ペア:

[(1, 21873390), (2, 10936695), (3, 7291130), (5, 4374678), (6, 3645565), (7, 3124770), (10, 2187339), (11, 1988490), (14, 1562385), (15, 1458226), (17, 1286670), (21, 1041590), (22, 994245), (30, 729113), (33, 662830), (34, 643335), (35, 624954), (42, 520795), (51, 428890), (55, 397698), (66, 331415), (70, 312477), (77, 284070), (85, 257334), (102, 214445), (105, 208318), (110, 198849), (119, 183810), (154, 142035), (165, 132566), (170, 128667), (187, 116970), (210, 104159), (231, 94690), (238, 91905), (255, 85778), (330, 66283), (357, 61270), (374, 58485), (385, 56814), (462, 47345), (510, 42889), (557, 39270), (561, 38990), (595, 36762), (714, 30635), (770, 28407), (935, 23394), (1114, 19635), (1122, 19495), (1155, 18938), (1190, 18381), (1309, 16710), (1671, 13090), (1785, 12254), (1870, 11697), (2310, 9469), (2618, 8355), (2785, 7854), (2805, 7798), (3342, 6545), (3570, 6127), (3899, 5610), (3927, 5570)]