20953875

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 35403264

約数和(自身を除く): 14449389

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 787, 1065, 1775, 2361, 3935, 5325, 8875, 11805, 19675, 26625, 55877, 59025, 98375, 167631, 279385, 295125, 838155, 1396925, 4190775, 6984625, 20953875]

約数ペア:

[(1, 20953875), (3, 6984625), (5, 4190775), (15, 1396925), (25, 838155), (71, 295125), (75, 279385), (125, 167631), (213, 98375), (355, 59025), (375, 55877), (787, 26625), (1065, 19675), (1775, 11805), (2361, 8875), (3935, 5325)]