20786895

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4967}}^1$

素因数の和:5012

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17367345

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4967, 14901, 24835, 44703, 74505, 134109, 153977, 223515, 461931, 670545, 769885, 1385793, 2309655, 4157379, 6928965, 20786895]

約数ペア:

[(1, 20786895), (3, 6928965), (5, 4157379), (9, 2309655), (15, 1385793), (27, 769885), (31, 670545), (45, 461931), (93, 223515), (135, 153977), (155, 134109), (279, 74505), (465, 44703), (837, 24835), (1395, 14901), (4185, 4967)]