20938778

素因数分解:

$2^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 16126822

約数列:

[1, 2, 7, 14, 49, 98, 131, 233, 262, 343, 466, 686, 917, 1631, 1834, 3262, 6419, 11417, 12838, 22834, 30523, 44933, 61046, 79919, 89866, 159838, 213661, 427322, 1495627, 2991254, 10469389, 20938778]

約数ペア:

[(1, 20938778), (2, 10469389), (7, 2991254), (14, 1495627), (49, 427322), (98, 213661), (131, 159838), (233, 89866), (262, 79919), (343, 61046), (466, 44933), (686, 30523), (917, 22834), (1631, 12838), (1834, 11417), (3262, 6419)]