21466256

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1399}}^1$

素因数の和:1551

約数の個数: 40

約数和(自身を含む): 47913600

約数和(自身を除く): 26447344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1399, 1918, 2192, 2798, 3836, 5596, 7672, 9793, 11192, 15344, 19586, 22384, 39172, 78344, 156688, 191663, 383326, 766652, 1341641, 1533304, 2683282, 3066608, 5366564, 10733128, 21466256]

約数ペア:

[(1, 21466256), (2, 10733128), (4, 5366564), (7, 3066608), (8, 2683282), (14, 1533304), (16, 1341641), (28, 766652), (56, 383326), (112, 191663), (137, 156688), (274, 78344), (548, 39172), (959, 22384), (1096, 19586), (1399, 15344), (1918, 11192), (2192, 9793), (2798, 7672), (3836, 5596)]