21195080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14321}}^1$

素因数の和:14369

約数の個数: 32

約数和(自身を含む): 48981240

約数和(自身を除く): 27786160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14321, 28642, 57284, 71605, 114568, 143210, 286420, 529877, 572840, 1059754, 2119508, 2649385, 4239016, 5298770, 10597540, 21195080]

約数ペア:

[(1, 21195080), (2, 10597540), (4, 5298770), (5, 4239016), (8, 2649385), (10, 2119508), (20, 1059754), (37, 572840), (40, 529877), (74, 286420), (148, 143210), (185, 114568), (296, 71605), (370, 57284), (740, 28642), (1480, 14321)]