19815406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{5563}}^1$

素因数の和:5715

約数の個数: 16

約数和(自身を含む): 32248944

約数和(自身を除く): 12433538

約数列:

[1, 2, 13, 26, 137, 274, 1781, 3562, 5563, 11126, 72319, 144638, 762131, 1524262, 9907703, 19815406]

約数ペア:

[(1, 19815406), (2, 9907703), (13, 1524262), (26, 762131), (137, 144638), (274, 72319), (1781, 11126), (3562, 5563)]