19895005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2027}}^1$

素因数の和:2196

約数の個数: 16

約数和(自身を含む): 25893504

約数和(自身を除く): 5998499

約数列:

[1, 5, 13, 65, 151, 755, 1963, 2027, 9815, 10135, 26351, 131755, 306077, 1530385, 3979001, 19895005]

約数ペア:

[(1, 19895005), (5, 3979001), (13, 1530385), (65, 306077), (151, 131755), (755, 26351), (1963, 10135), (2027, 9815)]