21590316

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{54521}}^1$

素因数の和:54542

約数の個数: 36

約数和(自身を含む): 59538024

約数和(自身を除く): 37947708

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 54521, 109042, 163563, 218084, 327126, 490689, 599731, 654252, 981378, 1199462, 1799193, 1962756, 2398924, 3598386, 5397579, 7196772, 10795158, 21590316]

約数ペア:

[(1, 21590316), (2, 10795158), (3, 7196772), (4, 5397579), (6, 3598386), (9, 2398924), (11, 1962756), (12, 1799193), (18, 1199462), (22, 981378), (33, 654252), (36, 599731), (44, 490689), (66, 327126), (99, 218084), (132, 163563), (198, 109042), (396, 54521)]