21440220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11527}}^1$

素因数の和:11570

約数の個数: 48

約数和(自身を含む): 61974528

約数和(自身を除く): 40534308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11527, 23054, 34581, 46108, 57635, 69162, 115270, 138324, 172905, 230540, 345810, 357337, 691620, 714674, 1072011, 1429348, 1786685, 2144022, 3573370, 4288044, 5360055, 7146740, 10720110, 21440220]

約数ペア:

[(1, 21440220), (2, 10720110), (3, 7146740), (4, 5360055), (5, 4288044), (6, 3573370), (10, 2144022), (12, 1786685), (15, 1429348), (20, 1072011), (30, 714674), (31, 691620), (60, 357337), (62, 345810), (93, 230540), (124, 172905), (155, 138324), (186, 115270), (310, 69162), (372, 57635), (465, 46108), (620, 34581), (930, 23054), (1860, 11527)]