19939916

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 35784000

約数和(自身を除く): 15844084

約数列:

[1, 2, 4, 79, 89, 158, 178, 316, 356, 709, 1418, 2836, 7031, 14062, 28124, 56011, 63101, 112022, 126202, 224044, 252404, 4984979, 9969958, 19939916]

約数ペア:

[(1, 19939916), (2, 9969958), (4, 4984979), (79, 252404), (89, 224044), (158, 126202), (178, 112022), (316, 63101), (356, 56011), (709, 28124), (1418, 14062), (2836, 7031)]