21102250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 43819776

約数和(自身を除く): 22717526

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 125, 130, 151, 215, 250, 302, 325, 430, 559, 650, 755, 1075, 1118, 1510, 1625, 1963, 2150, 2795, 3250, 3775, 3926, 5375, 5590, 6493, 7550, 9815, 10750, 12986, 13975, 18875, 19630, 27950, 32465, 37750, 49075, 64930, 69875, 84409, 98150, 139750, 162325, 168818, 245375, 324650, 422045, 490750, 811625, 844090, 1623250, 2110225, 4220450, 10551125, 21102250]

約数ペア:

[(1, 21102250), (2, 10551125), (5, 4220450), (10, 2110225), (13, 1623250), (25, 844090), (26, 811625), (43, 490750), (50, 422045), (65, 324650), (86, 245375), (125, 168818), (130, 162325), (151, 139750), (215, 98150), (250, 84409), (302, 69875), (325, 64930), (430, 49075), (559, 37750), (650, 32465), (755, 27950), (1075, 19630), (1118, 18875), (1510, 13975), (1625, 12986), (1963, 10750), (2150, 9815), (2795, 7550), (3250, 6493), (3775, 5590), (3926, 5375)]