20442156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1493}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 54883584

約数和(自身を除く): 34441428

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 326, 489, 652, 978, 1141, 1493, 1956, 2282, 2986, 3423, 4479, 4564, 5972, 6846, 8958, 10451, 13692, 17916, 20902, 31353, 41804, 62706, 125412, 243359, 486718, 730077, 973436, 1460154, 1703513, 2920308, 3407026, 5110539, 6814052, 10221078, 20442156]

約数ペア:

[(1, 20442156), (2, 10221078), (3, 6814052), (4, 5110539), (6, 3407026), (7, 2920308), (12, 1703513), (14, 1460154), (21, 973436), (28, 730077), (42, 486718), (84, 243359), (163, 125412), (326, 62706), (489, 41804), (652, 31353), (978, 20902), (1141, 17916), (1493, 13692), (1956, 10451), (2282, 8958), (2986, 6846), (3423, 5972), (4479, 4564)]