19221209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 22926336

約数和(自身を除く): 3705127

約数列:

[1, 7, 31, 101, 217, 707, 877, 3131, 6139, 21917, 27187, 88577, 190309, 620039, 2745887, 19221209]

約数ペア:

[(1, 19221209), (7, 2745887), (31, 620039), (101, 190309), (217, 88577), (707, 27187), (877, 21917), (3131, 6139)]