20913152

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1604

約数の個数: 44

約数和(自身を含む): 45050376

約数和(自身を除く): 24137224

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1571, 1664, 3142, 3328, 6284, 6656, 12568, 13312, 20423, 25136, 40846, 50272, 81692, 100544, 163384, 201088, 326768, 402176, 653536, 804352, 1307072, 1608704, 2614144, 5228288, 10456576, 20913152]

約数ペア:

[(1, 20913152), (2, 10456576), (4, 5228288), (8, 2614144), (13, 1608704), (16, 1307072), (26, 804352), (32, 653536), (52, 402176), (64, 326768), (104, 201088), (128, 163384), (208, 100544), (256, 81692), (416, 50272), (512, 40846), (832, 25136), (1024, 20423), (1571, 13312), (1664, 12568), (3142, 6656), (3328, 6284)]