19973556

素因数分解:

$2^2\times 3^2\times {\mathrm{554821}}^1$

素因数の和:554831

約数の個数: 18

約数和(自身を含む): 50488802

約数和(自身を除く): 30515246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 554821, 1109642, 1664463, 2219284, 3328926, 4993389, 6657852, 9986778, 19973556]

約数ペア:

[(1, 19973556), (2, 9986778), (3, 6657852), (4, 4993389), (6, 3328926), (9, 2219284), (12, 1664463), (18, 1109642), (36, 554821)]