20995728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33647}}^1$

素因数の和:33671

約数の個数: 40

約数和(自身を含む): 58412928

約数和(自身を除く): 37417200

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33647, 67294, 100941, 134588, 201882, 269176, 403764, 437411, 538352, 807528, 874822, 1312233, 1615056, 1749644, 2624466, 3499288, 5248932, 6998576, 10497864, 20995728]

約数ペア:

[(1, 20995728), (2, 10497864), (3, 6998576), (4, 5248932), (6, 3499288), (8, 2624466), (12, 1749644), (13, 1615056), (16, 1312233), (24, 874822), (26, 807528), (39, 538352), (48, 437411), (52, 403764), (78, 269176), (104, 201882), (156, 134588), (208, 100941), (312, 67294), (624, 33647)]