20895705

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5038

約数の個数: 32

約数和(自身を含む): 38353920

約数和(自身を除く): 17458215

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4993, 14979, 24965, 44937, 74895, 134811, 154783, 224685, 464349, 674055, 773915, 1393047, 2321745, 4179141, 6965235, 20895705]

約数ペア:

[(1, 20895705), (3, 6965235), (5, 4179141), (9, 2321745), (15, 1393047), (27, 773915), (31, 674055), (45, 464349), (93, 224685), (135, 154783), (155, 134811), (279, 74895), (465, 44937), (837, 24965), (1395, 14979), (4185, 4993)]