21924440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17681}}^1$

素因数の和:17723

約数の個数: 32

約数和(自身を含む): 50924160

約数和(自身を除く): 28999720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17681, 35362, 70724, 88405, 141448, 176810, 353620, 548111, 707240, 1096222, 2192444, 2740555, 4384888, 5481110, 10962220, 21924440]

約数ペア:

[(1, 21924440), (2, 10962220), (4, 5481110), (5, 4384888), (8, 2740555), (10, 2192444), (20, 1096222), (31, 707240), (40, 548111), (62, 353620), (124, 176810), (155, 141448), (248, 88405), (310, 70724), (620, 35362), (1240, 17681)]