21308072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156677}}^1$

素因数の和:156700

約数の個数: 16

約数和(自身を含む): 42303060

約数和(自身を除く): 20994988

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156677, 313354, 626708, 1253416, 2663509, 5327018, 10654036, 21308072]

約数ペア:

[(1, 21308072), (2, 10654036), (4, 5327018), (8, 2663509), (17, 1253416), (34, 626708), (68, 313354), (136, 156677)]