19642478

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{677}}^1$

素因数の和:931

約数の個数: 16

約数和(自身を含む): 30021840

約数和(自身を除く): 10379362

約数列:

[1, 2, 89, 163, 178, 326, 677, 1354, 14507, 29014, 60253, 110351, 120506, 220702, 9821239, 19642478]

約数ペア:

[(1, 19642478), (2, 9821239), (89, 220702), (163, 120506), (178, 110351), (326, 60253), (677, 29014), (1354, 14507)]