28420658

素因数分解:

$2^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{3167}}^1$

素因数の和:3817

約数の個数: 16

約数和(自身を含む): 48812544

約数和(自身を除く): 20391886

約数列:

[1, 2, 7, 14, 641, 1282, 3167, 4487, 6334, 8974, 22169, 44338, 2030047, 4060094, 14210329, 28420658]

約数ペア:

[(1, 28420658), (2, 14210329), (7, 4060094), (14, 2030047), (641, 44338), (1282, 22169), (3167, 8974), (4487, 6334)]