21986738

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{829}}^1$

素因数の和:1069

約数の個数: 16

約数和(自身を含む): 33615000

約数和(自身を除く): 11628262

約数列:

[1, 2, 89, 149, 178, 298, 829, 1658, 13261, 26522, 73781, 123521, 147562, 247042, 10993369, 21986738]

約数ペア:

[(1, 21986738), (2, 10993369), (89, 247042), (149, 147562), (178, 123521), (298, 73781), (829, 26522), (1658, 13261)]