28156959

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2347}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 42977792

約数和(自身を除く): 14820833

約数列:

[1, 3, 9, 31, 43, 93, 129, 279, 387, 1333, 2347, 3999, 7041, 11997, 21123, 72757, 100921, 218271, 302763, 654813, 908289, 3128551, 9385653, 28156959]

約数ペア:

[(1, 28156959), (3, 9385653), (9, 3128551), (31, 908289), (43, 654813), (93, 302763), (129, 218271), (279, 100921), (387, 72757), (1333, 21123), (2347, 11997), (3999, 7041)]