20977814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1856

約数の個数: 32

約数和(自身を含む): 37890720

約数和(自身を除く): 16912906

約数列:

[1, 2, 11, 13, 22, 26, 41, 82, 143, 286, 451, 533, 902, 1066, 1789, 3578, 5863, 11726, 19679, 23257, 39358, 46514, 73349, 146698, 255827, 511654, 806839, 953537, 1613678, 1907074, 10488907, 20977814]

約数ペア:

[(1, 20977814), (2, 10488907), (11, 1907074), (13, 1613678), (22, 953537), (26, 806839), (41, 511654), (82, 255827), (143, 146698), (286, 73349), (451, 46514), (533, 39358), (902, 23257), (1066, 19679), (1789, 11726), (3578, 5863)]