21327112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156817}}^1$

素因数の和:156840

約数の個数: 16

約数和(自身を含む): 42340860

約数和(自身を除く): 21013748

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156817, 313634, 627268, 1254536, 2665889, 5331778, 10663556, 21327112]

約数ペア:

[(1, 21327112), (2, 10663556), (4, 5331778), (8, 2665889), (17, 1254536), (34, 627268), (68, 313634), (136, 156817)]