20566988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2887}}^1$

素因数の和:3041

約数の個数: 24

約数和(自身を含む): 39057312

約数和(自身を除く): 18490324

約数列:

[1, 2, 4, 13, 26, 52, 137, 274, 548, 1781, 2887, 3562, 5774, 7124, 11548, 37531, 75062, 150124, 395519, 791038, 1582076, 5141747, 10283494, 20566988]

約数ペア:

[(1, 20566988), (2, 10283494), (4, 5141747), (13, 1582076), (26, 791038), (52, 395519), (137, 150124), (274, 75062), (548, 37531), (1781, 11548), (2887, 7124), (3562, 5774)]