20704816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2569

約数の個数: 40

約数和(自身を含む): 44711424

約数和(自身を除く): 24006608

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 2503, 4136, 5006, 8272, 10012, 20024, 27533, 40048, 55066, 110132, 117641, 220264, 235282, 440528, 470564, 941128, 1294051, 1882256, 2588102, 5176204, 10352408, 20704816]

約数ペア:

[(1, 20704816), (2, 10352408), (4, 5176204), (8, 2588102), (11, 1882256), (16, 1294051), (22, 941128), (44, 470564), (47, 440528), (88, 235282), (94, 220264), (176, 117641), (188, 110132), (376, 55066), (517, 40048), (752, 27533), (1034, 20024), (2068, 10012), (2503, 8272), (4136, 5006)]