31879771

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 42467328

約数和(自身を除く): 10587557

約数列:

[1, 7, 11, 23, 47, 77, 161, 253, 329, 383, 517, 1081, 1771, 2681, 3619, 4213, 7567, 8809, 11891, 18001, 29491, 61663, 83237, 96899, 126007, 198011, 414023, 678293, 1386077, 2898161, 4554253, 31879771]

約数ペア:

[(1, 31879771), (7, 4554253), (11, 2898161), (23, 1386077), (47, 678293), (77, 414023), (161, 198011), (253, 126007), (329, 96899), (383, 83237), (517, 61663), (1081, 29491), (1771, 18001), (2681, 11891), (3619, 8809), (4213, 7567)]