21167419

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 27142560

約数和(自身を除く): 5975141

約数列:

[1, 7, 13, 29, 91, 169, 203, 377, 617, 1183, 2639, 4319, 4901, 8021, 17893, 34307, 56147, 104273, 125251, 232609, 729911, 1628263, 3023917, 21167419]

約数ペア:

[(1, 21167419), (7, 3023917), (13, 1628263), (29, 729911), (91, 232609), (169, 125251), (203, 104273), (377, 56147), (617, 34307), (1183, 17893), (2639, 8021), (4319, 4901)]