21220180

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{6133}}^1$

素因数の和:6315

約数の個数: 24

約数和(自身を含む): 44827272

約数和(自身を除く): 23607092

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 6133, 12266, 24532, 30665, 61330, 122660, 1061009, 2122018, 4244036, 5305045, 10610090, 21220180]

約数ペア:

[(1, 21220180), (2, 10610090), (4, 5305045), (5, 4244036), (10, 2122018), (20, 1061009), (173, 122660), (346, 61330), (692, 30665), (865, 24532), (1730, 12266), (3460, 6133)]