21962960

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{977}}^1$

素因数の和:1271

約数の個数: 40

約数和(自身を含む): 51298056

約数和(自身を除く): 29335096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 977, 1124, 1405, 1954, 2248, 2810, 3908, 4496, 4885, 5620, 7816, 9770, 11240, 15632, 19540, 22480, 39080, 78160, 274537, 549074, 1098148, 1372685, 2196296, 2745370, 4392592, 5490740, 10981480, 21962960]

約数ペア:

[(1, 21962960), (2, 10981480), (4, 5490740), (5, 4392592), (8, 2745370), (10, 2196296), (16, 1372685), (20, 1098148), (40, 549074), (80, 274537), (281, 78160), (562, 39080), (977, 22480), (1124, 19540), (1405, 15632), (1954, 11240), (2248, 9770), (2810, 7816), (3908, 5620), (4496, 4885)]