19718666

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 34490880

約数和(自身を除く): 14772214

約数列:

[1, 2, 11, 22, 29, 31, 58, 62, 319, 341, 638, 682, 899, 997, 1798, 1994, 9889, 10967, 19778, 21934, 28913, 30907, 57826, 61814, 318043, 339977, 636086, 679954, 896303, 1792606, 9859333, 19718666]

約数ペア:

[(1, 19718666), (2, 9859333), (11, 1792606), (22, 896303), (29, 679954), (31, 636086), (58, 339977), (62, 318043), (319, 61814), (341, 57826), (638, 30907), (682, 28913), (899, 21934), (997, 19778), (1798, 10967), (1994, 9889)]