21298904

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{22003}}^1$

素因数の和:22031

約数の個数: 24

約数和(自身を含む): 43897980

約数和(自身を除く): 22599076

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 22003, 44006, 88012, 176024, 242033, 484066, 968132, 1936264, 2662363, 5324726, 10649452, 21298904]

約数ペア:

[(1, 21298904), (2, 10649452), (4, 5324726), (8, 2662363), (11, 1936264), (22, 968132), (44, 484066), (88, 242033), (121, 176024), (242, 88012), (484, 44006), (968, 22003)]