21309252

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 51788352

約数和(自身を除く): 30479100

約数列:

[1, 2, 3, 4, 6, 12, 43, 61, 86, 122, 129, 172, 183, 244, 258, 366, 516, 677, 732, 1354, 2031, 2623, 2708, 4062, 5246, 7869, 8124, 10492, 15738, 29111, 31476, 41297, 58222, 82594, 87333, 116444, 123891, 165188, 174666, 247782, 349332, 495564, 1775771, 3551542, 5327313, 7103084, 10654626, 21309252]

約数ペア:

[(1, 21309252), (2, 10654626), (3, 7103084), (4, 5327313), (6, 3551542), (12, 1775771), (43, 495564), (61, 349332), (86, 247782), (122, 174666), (129, 165188), (172, 123891), (183, 116444), (244, 87333), (258, 82594), (366, 58222), (516, 41297), (677, 31476), (732, 29111), (1354, 15738), (2031, 10492), (2623, 8124), (2708, 7869), (4062, 5246)]