21130413

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 30175200

約数和(自身を除く): 9044787

約数列:

[1, 3, 19, 57, 109, 179, 327, 361, 537, 1083, 2071, 3401, 6213, 10203, 19511, 39349, 58533, 64619, 118047, 193857, 370709, 1112127, 7043471, 21130413]

約数ペア:

[(1, 21130413), (3, 7043471), (19, 1112127), (57, 370709), (109, 193857), (179, 118047), (327, 64619), (361, 58533), (537, 39349), (1083, 19511), (2071, 10203), (3401, 6213)]