21092540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21523}}^1$

素因数の和:21546

約数の個数: 36

約数和(自身を含む): 51528456

約数和(自身を除く): 30435916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21523, 43046, 86092, 107615, 150661, 215230, 301322, 430460, 602644, 753305, 1054627, 1506610, 2109254, 3013220, 4218508, 5273135, 10546270, 21092540]

約数ペア:

[(1, 21092540), (2, 10546270), (4, 5273135), (5, 4218508), (7, 3013220), (10, 2109254), (14, 1506610), (20, 1054627), (28, 753305), (35, 602644), (49, 430460), (70, 301322), (98, 215230), (140, 150661), (196, 107615), (245, 86092), (490, 43046), (980, 21523)]