21829240

素因数分解:

$2^3\times 5^1\times {\mathrm{545731}}^1$

素因数の和:545742

約数の個数: 16

約数和(自身を含む): 49115880

約数和(自身を除く): 27286640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 545731, 1091462, 2182924, 2728655, 4365848, 5457310, 10914620, 21829240]

約数ペア:

[(1, 21829240), (2, 10914620), (4, 5457310), (5, 4365848), (8, 2728655), (10, 2182924), (20, 1091462), (40, 545731)]