21663950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 96

約数和(自身を含む): 53353728

約数和(自身を除く): 31689778

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 25, 34, 35, 50, 55, 70, 77, 85, 110, 119, 154, 170, 175, 187, 238, 275, 331, 350, 374, 385, 425, 550, 595, 662, 770, 850, 935, 1190, 1309, 1655, 1870, 1925, 2317, 2618, 2975, 3310, 3641, 3850, 4634, 4675, 5627, 5950, 6545, 7282, 8275, 9350, 11254, 11585, 13090, 16550, 18205, 23170, 25487, 28135, 32725, 36410, 39389, 50974, 56270, 57925, 61897, 65450, 78778, 91025, 115850, 123794, 127435, 140675, 182050, 196945, 254870, 281350, 309485, 393890, 433279, 618970, 637175, 866558, 984725, 1274350, 1547425, 1969450, 2166395, 3094850, 4332790, 10831975, 21663950]

約数ペア:

[(1, 21663950), (2, 10831975), (5, 4332790), (7, 3094850), (10, 2166395), (11, 1969450), (14, 1547425), (17, 1274350), (22, 984725), (25, 866558), (34, 637175), (35, 618970), (50, 433279), (55, 393890), (70, 309485), (77, 281350), (85, 254870), (110, 196945), (119, 182050), (154, 140675), (170, 127435), (175, 123794), (187, 115850), (238, 91025), (275, 78778), (331, 65450), (350, 61897), (374, 57925), (385, 56270), (425, 50974), (550, 39389), (595, 36410), (662, 32725), (770, 28135), (850, 25487), (935, 23170), (1190, 18205), (1309, 16550), (1655, 13090), (1870, 11585), (1925, 11254), (2317, 9350), (2618, 8275), (2975, 7282), (3310, 6545), (3641, 5950), (3850, 5627), (4634, 4675)]