21905443

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{1019}}^1$

素因数の和:1146

約数の個数: 16

約数和(自身を含む): 26046720

約数和(自身を除く): 4141277

約数列:

[1, 7, 37, 83, 259, 581, 1019, 3071, 7133, 21497, 37703, 84577, 263921, 592039, 3129349, 21905443]

約数ペア:

[(1, 21905443), (7, 3129349), (37, 592039), (83, 263921), (259, 84577), (581, 37703), (1019, 21497), (3071, 7133)]