19871839

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1621}}^1$

素因数の和:1698

約数の個数: 16

約数和(自身を含む): 22889664

約数和(自身を除く): 3017825

約数列:

[1, 13, 23, 41, 299, 533, 943, 1621, 12259, 21073, 37283, 66461, 484679, 863993, 1528603, 19871839]

約数ペア:

[(1, 19871839), (13, 1528603), (23, 863993), (41, 484679), (299, 66461), (533, 37283), (943, 21073), (1621, 12259)]