21000209035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{2473}}^1\times {\mathrm{130643}}^1$

素因数の和:133134

約数の個数: 16

約数和(自身を含む): 27149913504

約数和(自身を除く): 6149704469

約数列:

[1, 5, 13, 65, 2473, 12365, 32149, 130643, 160745, 653215, 1698359, 8491795, 323080139, 1615400695, 4200041807, 21000209035]

約数ペア:

[(1, 21000209035), (5, 4200041807), (13, 1615400695), (65, 323080139), (2473, 8491795), (12365, 1698359), (32149, 653215), (130643, 160745)]