639898343

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{49333}}^1$

素因数の和:49466

約数の個数: 16

約数和(自身を含む): 781450560

約数和(自身を除く): 141552217

約数列:

[1, 7, 17, 109, 119, 763, 1853, 12971, 49333, 345331, 838661, 5377297, 5870627, 37641079, 91414049, 639898343]

約数ペア:

[(1, 639898343), (7, 91414049), (17, 37641079), (109, 5870627), (119, 5377297), (763, 838661), (1853, 345331), (12971, 49333)]