21828625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 35642880

約数和(自身を除く): 13814255

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 101, 125, 133, 175, 247, 325, 455, 475, 505, 665, 707, 875, 1235, 1313, 1625, 1729, 1919, 2275, 2375, 2525, 3325, 3535, 6175, 6565, 8645, 9191, 9595, 11375, 12625, 13433, 16625, 17675, 24947, 30875, 32825, 43225, 45955, 47975, 67165, 88375, 124735, 164125, 174629, 216125, 229775, 239875, 335825, 623675, 873145, 1148875, 1679125, 3118375, 4365725, 21828625]

約数ペア:

[(1, 21828625), (5, 4365725), (7, 3118375), (13, 1679125), (19, 1148875), (25, 873145), (35, 623675), (65, 335825), (91, 239875), (95, 229775), (101, 216125), (125, 174629), (133, 164125), (175, 124735), (247, 88375), (325, 67165), (455, 47975), (475, 45955), (505, 43225), (665, 32825), (707, 30875), (875, 24947), (1235, 17675), (1313, 16625), (1625, 13433), (1729, 12625), (1919, 11375), (2275, 9595), (2375, 9191), (2525, 8645), (3325, 6565), (3535, 6175)]