18618879

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 27740160

約数和(自身を除く): 9121281

約数列:

[1, 3, 19, 31, 41, 57, 93, 123, 257, 589, 771, 779, 1271, 1767, 2337, 3813, 4883, 7967, 10537, 14649, 23901, 24149, 31611, 72447, 151373, 200203, 326647, 454119, 600609, 979941, 6206293, 18618879]

約数ペア:

[(1, 18618879), (3, 6206293), (19, 979941), (31, 600609), (41, 454119), (57, 326647), (93, 200203), (123, 151373), (257, 72447), (589, 31611), (771, 24149), (779, 23901), (1271, 14649), (1767, 10537), (2337, 7967), (3813, 4883)]