19721166

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{142907}}^1$

素因数の和:142935

約数の個数: 16

約数和(自身を含む): 41157504

約数和(自身を除く): 21436338

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 142907, 285814, 428721, 857442, 3286861, 6573722, 9860583, 19721166]

約数ペア:

[(1, 19721166), (2, 9860583), (3, 6573722), (6, 3286861), (23, 857442), (46, 428721), (69, 285814), (138, 142907)]