19720218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{469529}}^1$

素因数の和:469541

約数の個数: 16

約数和(自身を含む): 45074880

約数和(自身を除く): 25354662

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 469529, 939058, 1408587, 2817174, 3286703, 6573406, 9860109, 19720218]

約数ペア:

[(1, 19720218), (2, 9860109), (3, 6573406), (6, 3286703), (7, 2817174), (14, 1408587), (21, 939058), (42, 469529)]