21863820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 67527936

約数和(自身を除く): 45664116

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 157, 165, 211, 220, 314, 330, 422, 471, 628, 633, 660, 785, 844, 942, 1055, 1266, 1570, 1727, 1884, 2110, 2321, 2355, 2532, 3140, 3165, 3454, 4220, 4642, 4710, 5181, 6330, 6908, 6963, 8635, 9284, 9420, 10362, 11605, 12660, 13926, 17270, 20724, 23210, 25905, 27852, 33127, 34540, 34815, 46420, 51810, 66254, 69630, 99381, 103620, 132508, 139260, 165635, 198762, 331270, 364397, 397524, 496905, 662540, 728794, 993810, 1093191, 1457588, 1821985, 1987620, 2186382, 3643970, 4372764, 5465955, 7287940, 10931910, 21863820]

約数ペア:

[(1, 21863820), (2, 10931910), (3, 7287940), (4, 5465955), (5, 4372764), (6, 3643970), (10, 2186382), (11, 1987620), (12, 1821985), (15, 1457588), (20, 1093191), (22, 993810), (30, 728794), (33, 662540), (44, 496905), (55, 397524), (60, 364397), (66, 331270), (110, 198762), (132, 165635), (157, 139260), (165, 132508), (211, 103620), (220, 99381), (314, 69630), (330, 66254), (422, 51810), (471, 46420), (628, 34815), (633, 34540), (660, 33127), (785, 27852), (844, 25905), (942, 23210), (1055, 20724), (1266, 17270), (1570, 13926), (1727, 12660), (1884, 11605), (2110, 10362), (2321, 9420), (2355, 9284), (2532, 8635), (3140, 6963), (3165, 6908), (3454, 6330), (4220, 5181), (4642, 4710)]