21753778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4603}}^1$

素因数の和:4761

約数の個数: 16

約数和(自身を含む): 34806240

約数和(自身を除く): 13052462

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4603, 4726, 9206, 78251, 156502, 639817, 1279634, 10876889, 21753778]

約数ペア:

[(1, 21753778), (2, 10876889), (17, 1279634), (34, 639817), (139, 156502), (278, 78251), (2363, 9206), (4603, 4726)]