21670875

素因数分解:

$3^3\times 5^3\times {\mathrm{6421}}^1$

素因数の和:6445

約数の個数: 32

約数和(自身を含む): 40073280

約数和(自身を除く): 18402405

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 6421, 19263, 32105, 57789, 96315, 160525, 173367, 288945, 481575, 802625, 866835, 1444725, 2407875, 4334175, 7223625, 21670875]

約数ペア:

[(1, 21670875), (3, 7223625), (5, 4334175), (9, 2407875), (15, 1444725), (25, 866835), (27, 802625), (45, 481575), (75, 288945), (125, 173367), (135, 160525), (225, 96315), (375, 57789), (675, 32105), (1125, 19263), (3375, 6421)]