20972822

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{2437}}^1$

素因数の和:2783

約数の個数: 16

約数和(自身を含む): 33995472

約数和(自身を除く): 13022650

約数列:

[1, 2, 13, 26, 331, 662, 2437, 4303, 4874, 8606, 31681, 63362, 806647, 1613294, 10486411, 20972822]

約数ペア:

[(1, 20972822), (2, 10486411), (13, 1613294), (26, 806647), (331, 63362), (662, 31681), (2437, 8606), (4303, 4874)]