20869576

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 27917624

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 109, 182, 218, 263, 364, 436, 526, 728, 763, 872, 1052, 1417, 1526, 1841, 2104, 2834, 3052, 3419, 3682, 5668, 6104, 6838, 7364, 9919, 11336, 13676, 14728, 19838, 23933, 27352, 28667, 39676, 47866, 57334, 79352, 95732, 114668, 191464, 200669, 229336, 372671, 401338, 745342, 802676, 1490684, 1605352, 2608697, 2981368, 5217394, 10434788, 20869576]

約数ペア:

[(1, 20869576), (2, 10434788), (4, 5217394), (7, 2981368), (8, 2608697), (13, 1605352), (14, 1490684), (26, 802676), (28, 745342), (52, 401338), (56, 372671), (91, 229336), (104, 200669), (109, 191464), (182, 114668), (218, 95732), (263, 79352), (364, 57334), (436, 47866), (526, 39676), (728, 28667), (763, 27352), (872, 23933), (1052, 19838), (1417, 14728), (1526, 13676), (1841, 11336), (2104, 9919), (2834, 7364), (3052, 6838), (3419, 6104), (3682, 5668)]