21270552

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20611}}^1$

素因数の和:20663

約数の個数: 32

約数和(自身を含む): 54415680

約数和(自身を除く): 33145128

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20611, 41222, 61833, 82444, 123666, 164888, 247332, 494664, 886273, 1772546, 2658819, 3545092, 5317638, 7090184, 10635276, 21270552]

約数ペア:

[(1, 21270552), (2, 10635276), (3, 7090184), (4, 5317638), (6, 3545092), (8, 2658819), (12, 1772546), (24, 886273), (43, 494664), (86, 247332), (129, 164888), (172, 123666), (258, 82444), (344, 61833), (516, 41222), (1032, 20611)]