21824840

素因数分解:

$2^3\times 5^1\times {\mathrm{545621}}^1$

素因数の和:545632

約数の個数: 16

約数和(自身を含む): 49105980

約数和(自身を除く): 27281140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 545621, 1091242, 2182484, 2728105, 4364968, 5456210, 10912420, 21824840]

約数ペア:

[(1, 21824840), (2, 10912420), (4, 5456210), (5, 4364968), (8, 2728105), (10, 2182484), (20, 1091242), (40, 545621)]