21691956

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12641}}^1$

素因数の和:12672

約数の個数: 48

約数和(自身を含む): 59467968

約数和(自身を除く): 37776012

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 12641, 25282, 37923, 50564, 75846, 139051, 151692, 164333, 278102, 328666, 417153, 492999, 556204, 657332, 834306, 985998, 1668612, 1807663, 1971996, 3615326, 5422989, 7230652, 10845978, 21691956]

約数ペア:

[(1, 21691956), (2, 10845978), (3, 7230652), (4, 5422989), (6, 3615326), (11, 1971996), (12, 1807663), (13, 1668612), (22, 985998), (26, 834306), (33, 657332), (39, 556204), (44, 492999), (52, 417153), (66, 328666), (78, 278102), (132, 164333), (143, 151692), (156, 139051), (286, 75846), (429, 50564), (572, 37923), (858, 25282), (1716, 12641)]