21907060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{937}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 52948224

約数和(自身を除く): 31041164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 835, 937, 1169, 1670, 1874, 2338, 3340, 3748, 4676, 4685, 5845, 6559, 9370, 11690, 13118, 18740, 23380, 26236, 32795, 65590, 131180, 156479, 312958, 625916, 782395, 1095353, 1564790, 2190706, 3129580, 4381412, 5476765, 10953530, 21907060]

約数ペア:

[(1, 21907060), (2, 10953530), (4, 5476765), (5, 4381412), (7, 3129580), (10, 2190706), (14, 1564790), (20, 1095353), (28, 782395), (35, 625916), (70, 312958), (140, 156479), (167, 131180), (334, 65590), (668, 32795), (835, 26236), (937, 23380), (1169, 18740), (1670, 13118), (1874, 11690), (2338, 9370), (3340, 6559), (3748, 5845), (4676, 4685)]