20161621291

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{13147}}^1$

素因数の和:13448

約数の個数: 32

約数和(自身を含む): 24991718400

約数和(自身を除く): 4830097109

約数列:

[1, 7, 17, 49, 119, 263, 343, 833, 1841, 4471, 5831, 12887, 13147, 31297, 90209, 92029, 219079, 223499, 644203, 1533553, 1564493, 3457661, 4509421, 10951451, 24203627, 58780237, 76660157, 169425389, 411461659, 1185977723, 2880231613, 20161621291]

約数ペア:

[(1, 20161621291), (7, 2880231613), (17, 1185977723), (49, 411461659), (119, 169425389), (263, 76660157), (343, 58780237), (833, 24203627), (1841, 10951451), (4471, 4509421), (5831, 3457661), (12887, 1564493), (13147, 1533553), (31297, 644203), (90209, 223499), (92029, 219079)]