20783804

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 37029888

約数和(自身を除く): 16246084

約数列:

[1, 2, 4, 127, 163, 251, 254, 326, 502, 508, 652, 1004, 20701, 31877, 40913, 41402, 63754, 81826, 82804, 127508, 163652, 5195951, 10391902, 20783804]

約数ペア:

[(1, 20783804), (2, 10391902), (4, 5195951), (127, 163652), (163, 127508), (251, 82804), (254, 81826), (326, 63754), (502, 41402), (508, 40913), (652, 31877), (1004, 20701)]