21715256

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159671}}^1$

素因数の和:159694

約数の個数: 16

約数和(自身を含む): 43111440

約数和(自身を除く): 21396184

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159671, 319342, 638684, 1277368, 2714407, 5428814, 10857628, 21715256]

約数ペア:

[(1, 21715256), (2, 10857628), (4, 5428814), (8, 2714407), (17, 1277368), (34, 638684), (68, 319342), (136, 159671)]