21299978

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2281}}^1$

素因数の和:2342

約数の個数: 32

約数和(自身を含む): 39432960

約数和(自身を除く): 18132982

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 161, 203, 322, 406, 667, 1334, 2281, 4562, 4669, 9338, 15967, 31934, 52463, 66149, 104926, 132298, 367241, 463043, 734482, 926086, 1521427, 3042854, 10649989, 21299978]

約数ペア:

[(1, 21299978), (2, 10649989), (7, 3042854), (14, 1521427), (23, 926086), (29, 734482), (46, 463043), (58, 367241), (161, 132298), (203, 104926), (322, 66149), (406, 52463), (667, 31934), (1334, 15967), (2281, 9338), (4562, 4669)]