21221608

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{85571}}^1$

素因数の和:85608

約数の個数: 16

約数和(自身を含む): 41074560

約数和(自身を除く): 19852952

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 85571, 171142, 342284, 684568, 2652701, 5305402, 10610804, 21221608]

約数ペア:

[(1, 21221608), (2, 10610804), (4, 5305402), (8, 2652701), (31, 684568), (62, 342284), (124, 171142), (248, 85571)]