19756816

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1519

約数の個数: 40

約数和(自身を含む): 41050944

約数和(自身を除く): 21294128

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1451, 1702, 2902, 3404, 5804, 6808, 11608, 13616, 23216, 33373, 53687, 66746, 107374, 133492, 214748, 266984, 429496, 533968, 858992, 1234801, 2469602, 4939204, 9878408, 19756816]

約数ペア:

[(1, 19756816), (2, 9878408), (4, 4939204), (8, 2469602), (16, 1234801), (23, 858992), (37, 533968), (46, 429496), (74, 266984), (92, 214748), (148, 133492), (184, 107374), (296, 66746), (368, 53687), (592, 33373), (851, 23216), (1451, 13616), (1702, 11608), (2902, 6808), (3404, 5804)]