20941408

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:839

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 23299712

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 592, 736, 769, 851, 1184, 1538, 1702, 3076, 3404, 6152, 6808, 12304, 13616, 17687, 24608, 27232, 28453, 35374, 56906, 70748, 113812, 141496, 227624, 282992, 455248, 565984, 654419, 910496, 1308838, 2617676, 5235352, 10470704, 20941408]

約数ペア:

[(1, 20941408), (2, 10470704), (4, 5235352), (8, 2617676), (16, 1308838), (23, 910496), (32, 654419), (37, 565984), (46, 455248), (74, 282992), (92, 227624), (148, 141496), (184, 113812), (296, 70748), (368, 56906), (592, 35374), (736, 28453), (769, 27232), (851, 24608), (1184, 17687), (1538, 13616), (1702, 12304), (3076, 6808), (3404, 6152)]