19904494

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{1669}}^1$

素因数の和:1827

約数の個数: 16

約数和(自身を含む): 30661200

約数和(自身を除く): 10756706

約数列:

[1, 2, 67, 89, 134, 178, 1669, 3338, 5963, 11926, 111823, 148541, 223646, 297082, 9952247, 19904494]

約数ペア:

[(1, 19904494), (2, 9952247), (67, 297082), (89, 223646), (134, 148541), (178, 111823), (1669, 11926), (3338, 5963)]