21602187

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 12266613

約数列:

[1, 3, 9, 27, 29, 47, 87, 141, 261, 423, 587, 783, 1269, 1363, 1761, 4089, 5283, 12267, 15849, 17023, 27589, 36801, 51069, 82767, 153207, 248301, 459621, 744903, 800081, 2400243, 7200729, 21602187]

約数ペア:

[(1, 21602187), (3, 7200729), (9, 2400243), (27, 800081), (29, 744903), (47, 459621), (87, 248301), (141, 153207), (261, 82767), (423, 51069), (587, 36801), (783, 27589), (1269, 17023), (1363, 15849), (1761, 12267), (4089, 5283)]