21239681

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{983}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 23804928

約数和(自身を除く): 2565247

約数列:

[1, 17, 31, 41, 527, 697, 983, 1271, 16711, 21607, 30473, 40303, 518041, 685151, 1249393, 21239681]

約数ペア:

[(1, 21239681), (17, 1249393), (31, 685151), (41, 518041), (527, 40303), (697, 30473), (983, 21607), (1271, 16711)]