18888941744

素因数分解:

$2^4\times {\mathrm{887}}^1\times {\mathrm{1330957}}^1$

素因数の和:1331852

約数の個数: 20

約数和(自身を含む): 36638611824

約数和(自身を除く): 17749670080

約数列:

[1, 2, 4, 8, 16, 887, 1774, 3548, 7096, 14192, 1330957, 2661914, 5323828, 10647656, 21295312, 1180558859, 2361117718, 4722235436, 9444470872, 18888941744]

約数ペア:

[(1, 18888941744), (2, 9444470872), (4, 4722235436), (8, 2361117718), (16, 1180558859), (887, 21295312), (1774, 10647656), (3548, 5323828), (7096, 2661914), (14192, 1330957)]