21884840

素因数分解:

$2^3\times 5^1\times {\mathrm{547121}}^1$

素因数の和:547132

約数の個数: 16

約数和(自身を含む): 49240980

約数和(自身を除く): 27356140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547121, 1094242, 2188484, 2735605, 4376968, 5471210, 10942420, 21884840]

約数ペア:

[(1, 21884840), (2, 10942420), (4, 5471210), (5, 4376968), (8, 2735605), (10, 2188484), (20, 1094242), (40, 547121)]