18858357

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2357}}^1$

素因数の和:2497

約数の個数: 24

約数和(自身を含む): 31389696

約数和(自身を除く): 12531339

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2357, 2667, 7071, 8001, 16499, 21213, 49497, 148491, 299339, 898017, 2095373, 2694051, 6286119, 18858357]

約数ペア:

[(1, 18858357), (3, 6286119), (7, 2694051), (9, 2095373), (21, 898017), (63, 299339), (127, 148491), (381, 49497), (889, 21213), (1143, 16499), (2357, 8001), (2667, 7071)]