20389292

素因数分解:

$2^2\times 7^4\times {\mathrm{11}}^1\times {\mathrm{193}}^1$

素因数の和:236

約数の個数: 60

約数和(自身を含む): 45645096

約数和(自身を除く): 25255804

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 193, 196, 308, 343, 386, 539, 686, 772, 1078, 1351, 1372, 2123, 2156, 2401, 2702, 3773, 4246, 4802, 5404, 7546, 8492, 9457, 9604, 14861, 15092, 18914, 26411, 29722, 37828, 52822, 59444, 66199, 104027, 105644, 132398, 208054, 264796, 416108, 463393, 728189, 926786, 1456378, 1853572, 2912756, 5097323, 10194646, 20389292]

約数ペア:

[(1, 20389292), (2, 10194646), (4, 5097323), (7, 2912756), (11, 1853572), (14, 1456378), (22, 926786), (28, 728189), (44, 463393), (49, 416108), (77, 264796), (98, 208054), (154, 132398), (193, 105644), (196, 104027), (308, 66199), (343, 59444), (386, 52822), (539, 37828), (686, 29722), (772, 26411), (1078, 18914), (1351, 15092), (1372, 14861), (2123, 9604), (2156, 9457), (2401, 8492), (2702, 7546), (3773, 5404), (4246, 4802)]