21719625

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3407}}^1$

素因数の和:3442

約数の個数: 32

約数和(自身を含む): 38278656

約数和(自身を除く): 16559031

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3407, 6375, 10221, 17035, 51105, 57919, 85175, 173757, 255525, 289595, 425875, 868785, 1277625, 1447975, 4343925, 7239875, 21719625]

約数ペア:

[(1, 21719625), (3, 7239875), (5, 4343925), (15, 1447975), (17, 1277625), (25, 868785), (51, 425875), (75, 289595), (85, 255525), (125, 173757), (255, 85175), (375, 57919), (425, 51105), (1275, 17035), (2125, 10221), (3407, 6375)]