21528812

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{587}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 38673936

約数和(自身を除く): 17145124

約数列:

[1, 2, 4, 53, 106, 173, 212, 346, 587, 692, 1174, 2348, 9169, 18338, 31111, 36676, 62222, 101551, 124444, 203102, 406204, 5382203, 10764406, 21528812]

約数ペア:

[(1, 21528812), (2, 10764406), (4, 5382203), (53, 406204), (106, 203102), (173, 124444), (212, 101551), (346, 62222), (587, 36676), (692, 31111), (1174, 18338), (2348, 9169)]