20490444

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43783}}^1$

素因数の和:43806

約数の個数: 36

約数和(自身を含む): 55780816

約数和(自身を除く): 35290372

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43783, 87566, 131349, 175132, 262698, 394047, 525396, 569179, 788094, 1138358, 1576188, 1707537, 2276716, 3415074, 5122611, 6830148, 10245222, 20490444]

約数ペア:

[(1, 20490444), (2, 10245222), (3, 6830148), (4, 5122611), (6, 3415074), (9, 2276716), (12, 1707537), (13, 1576188), (18, 1138358), (26, 788094), (36, 569179), (39, 525396), (52, 394047), (78, 262698), (117, 175132), (156, 131349), (234, 87566), (468, 43783)]