21141145

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 26406720

約数和(自身を除く): 5265575

約数列:

[1, 5, 29, 145, 211, 691, 1055, 3455, 6119, 20039, 30595, 100195, 145801, 729005, 4228229, 21141145]

約数ペア:

[(1, 21141145), (5, 4228229), (29, 729005), (145, 145801), (211, 100195), (691, 30595), (1055, 20039), (3455, 6119)]