20785995

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7829}}^1$

素因数の和:7899

約数の個数: 24

約数和(自身を含む): 36644400

約数和(自身を除く): 15858405

約数列:

[1, 3, 5, 9, 15, 45, 59, 177, 295, 531, 885, 2655, 7829, 23487, 39145, 70461, 117435, 352305, 461911, 1385733, 2309555, 4157199, 6928665, 20785995]

約数ペア:

[(1, 20785995), (3, 6928665), (5, 4157199), (9, 2309555), (15, 1385733), (45, 461911), (59, 352305), (177, 117435), (295, 70461), (531, 39145), (885, 23487), (2655, 7829)]