21820227

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2677}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 35992320

約数和(自身を除く): 14172093

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2677, 2717, 8031, 8151, 29447, 34801, 50863, 88341, 104403, 152589, 382811, 559493, 661219, 1148433, 1678479, 1983657, 7273409, 21820227]

約数ペア:

[(1, 21820227), (3, 7273409), (11, 1983657), (13, 1678479), (19, 1148433), (33, 661219), (39, 559493), (57, 382811), (143, 152589), (209, 104403), (247, 88341), (429, 50863), (627, 34801), (741, 29447), (2677, 8151), (2717, 8031)]