20621385

素因数分解:

$3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{863}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 37635840

約数和(自身を除く): 17014455

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 295, 405, 531, 863, 885, 1593, 2589, 2655, 4315, 4779, 7767, 7965, 12945, 23301, 23895, 38835, 50917, 69903, 116505, 152751, 254585, 349515, 458253, 763755, 1374759, 2291265, 4124277, 6873795, 20621385]

約数ペア:

[(1, 20621385), (3, 6873795), (5, 4124277), (9, 2291265), (15, 1374759), (27, 763755), (45, 458253), (59, 349515), (81, 254585), (135, 152751), (177, 116505), (295, 69903), (405, 50917), (531, 38835), (863, 23895), (885, 23301), (1593, 12945), (2589, 7965), (2655, 7767), (4315, 4779)]