19966890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{665563}}^1$

素因数の和:665573

約数の個数: 16

約数和(自身を含む): 47920608

約数和(自身を除く): 27953718

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 665563, 1331126, 1996689, 3327815, 3993378, 6655630, 9983445, 19966890]

約数ペア:

[(1, 19966890), (2, 9983445), (3, 6655630), (5, 3993378), (6, 3327815), (10, 1996689), (15, 1331126), (30, 665563)]