21365307

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{953}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 32145984

約数和(自身を除く): 10780677

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 953, 2491, 2859, 7473, 8577, 22419, 44791, 50509, 134373, 151527, 403119, 454581, 2373923, 7121769, 21365307]

約数ペア:

[(1, 21365307), (3, 7121769), (9, 2373923), (47, 454581), (53, 403119), (141, 151527), (159, 134373), (423, 50509), (477, 44791), (953, 22419), (2491, 8577), (2859, 7473)]