20980035

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7643}}^1$

素因数の和:7715

約数の個数: 24

約数和(自身を含む): 36966384

約数和(自身を除く): 15986349

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7643, 22929, 38215, 68787, 114645, 343935, 466223, 1398669, 2331115, 4196007, 6993345, 20980035]

約数ペア:

[(1, 20980035), (3, 6993345), (5, 4196007), (9, 2331115), (15, 1398669), (45, 466223), (61, 343935), (183, 114645), (305, 68787), (549, 38215), (915, 22929), (2745, 7643)]