1820404

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 3403008

約数和(自身を除く): 1582604

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 188, 421, 842, 1081, 1684, 2162, 4324, 9683, 19366, 19787, 38732, 39574, 79148, 455101, 910202, 1820404]

約数ペア:

[(1, 1820404), (2, 910202), (4, 455101), (23, 79148), (46, 39574), (47, 38732), (92, 19787), (94, 19366), (188, 9683), (421, 4324), (842, 2162), (1081, 1684)]