20491848

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21893}}^1$

素因数の和:21918

約数の個数: 48

約数和(自身を含む): 59770620

約数和(自身を除く): 39278772

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21893, 43786, 65679, 87572, 131358, 175144, 197037, 262716, 284609, 394074, 525432, 569218, 788148, 853827, 1138436, 1576296, 1707654, 2276872, 2561481, 3415308, 5122962, 6830616, 10245924, 20491848]

約数ペア:

[(1, 20491848), (2, 10245924), (3, 6830616), (4, 5122962), (6, 3415308), (8, 2561481), (9, 2276872), (12, 1707654), (13, 1576296), (18, 1138436), (24, 853827), (26, 788148), (36, 569218), (39, 525432), (52, 394074), (72, 284609), (78, 262716), (104, 197037), (117, 175144), (156, 131358), (234, 87572), (312, 65679), (468, 43786), (936, 21893)]