20944870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 39207168

約数和(自身を除く): 18262298

約数列:

[1, 2, 5, 10, 43, 67, 86, 134, 215, 335, 430, 670, 727, 1454, 2881, 3635, 5762, 7270, 14405, 28810, 31261, 48709, 62522, 97418, 156305, 243545, 312610, 487090, 2094487, 4188974, 10472435, 20944870]

約数ペア:

[(1, 20944870), (2, 10472435), (5, 4188974), (10, 2094487), (43, 487090), (67, 312610), (86, 243545), (134, 156305), (215, 97418), (335, 62522), (430, 48709), (670, 31261), (727, 28810), (1454, 14405), (2881, 7270), (3635, 5762)]