21790395

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44021}}^1$

素因数の和:44043

約数の個数: 24

約数和(自身を含む): 41204592

約数和(自身を除く): 19414197

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 44021, 132063, 220105, 396189, 484231, 660315, 1452693, 1980945, 2421155, 4358079, 7263465, 21790395]

約数ペア:

[(1, 21790395), (3, 7263465), (5, 4358079), (9, 2421155), (11, 1980945), (15, 1452693), (33, 660315), (45, 484231), (55, 396189), (99, 220105), (165, 132063), (495, 44021)]