20791666

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 37376640

約数和(自身を除く): 16584974

約数列:

[1, 2, 7, 14, 29, 58, 83, 166, 203, 406, 581, 617, 1162, 1234, 2407, 4319, 4814, 8638, 16849, 17893, 33698, 35786, 51211, 102422, 125251, 250502, 358477, 716954, 1485119, 2970238, 10395833, 20791666]

約数ペア:

[(1, 20791666), (2, 10395833), (7, 2970238), (14, 1485119), (29, 716954), (58, 358477), (83, 250502), (166, 125251), (203, 102422), (406, 51211), (581, 35786), (617, 33698), (1162, 17893), (1234, 16849), (2407, 8638), (4319, 4814)]