18735479

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 24105600

約数和(自身を除く): 5370121

約数列:

[1, 7, 17, 29, 61, 89, 119, 203, 427, 493, 623, 1037, 1513, 1769, 2581, 3451, 5429, 7259, 10591, 12383, 18067, 30073, 38003, 43877, 92293, 157441, 210511, 307139, 646051, 1102087, 2676497, 18735479]

約数ペア:

[(1, 18735479), (7, 2676497), (17, 1102087), (29, 646051), (61, 307139), (89, 210511), (119, 157441), (203, 92293), (427, 43877), (493, 38003), (623, 30073), (1037, 18067), (1513, 12383), (1769, 10591), (2581, 7259), (3451, 5429)]