21411351

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61001}}^1$

素因数の和:61023

約数の個数: 16

約数和(自身を含む): 34161120

約数和(自身を除く): 12749769

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 61001, 183003, 549009, 793013, 1647027, 2379039, 7137117, 21411351]

約数ペア:

[(1, 21411351), (3, 7137117), (9, 2379039), (13, 1647027), (27, 793013), (39, 549009), (117, 183003), (351, 61001)]