21838625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 7813855

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 239, 425, 731, 1075, 1195, 2125, 3655, 4063, 5375, 5975, 10277, 18275, 20315, 29875, 51385, 91375, 101575, 174709, 256925, 507875, 873545, 1284625, 4367725, 21838625]

約数ペア:

[(1, 21838625), (5, 4367725), (17, 1284625), (25, 873545), (43, 507875), (85, 256925), (125, 174709), (215, 101575), (239, 91375), (425, 51385), (731, 29875), (1075, 20315), (1195, 18275), (2125, 10277), (3655, 5975), (4063, 5375)]