20810862

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 46741968

約数和(自身を除く): 25931106

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 163, 173, 246, 326, 346, 369, 489, 519, 738, 978, 1038, 1467, 1557, 2934, 3114, 6683, 7093, 13366, 14186, 20049, 21279, 28199, 40098, 42558, 56398, 60147, 63837, 84597, 120294, 127674, 169194, 253791, 507582, 1156159, 2312318, 3468477, 6936954, 10405431, 20810862]

約数ペア:

[(1, 20810862), (2, 10405431), (3, 6936954), (6, 3468477), (9, 2312318), (18, 1156159), (41, 507582), (82, 253791), (123, 169194), (163, 127674), (173, 120294), (246, 84597), (326, 63837), (346, 60147), (369, 56398), (489, 42558), (519, 40098), (738, 28199), (978, 21279), (1038, 20049), (1467, 14186), (1557, 13366), (2934, 7093), (3114, 6683)]