20357589

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1753}}^1$

素因数の和:1849

約数の個数: 24

約数和(自身を含む): 31992960

約数和(自身を除く): 11635371

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 1753, 3871, 5259, 11613, 12271, 36813, 85897, 138487, 257691, 415461, 969409, 2908227, 6785863, 20357589]

約数ペア:

[(1, 20357589), (3, 6785863), (7, 2908227), (21, 969409), (49, 415461), (79, 257691), (147, 138487), (237, 85897), (553, 36813), (1659, 12271), (1753, 11613), (3871, 5259)]