21516103

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1229}}^1$

素因数の和:1338

約数の個数: 16

約数和(自身を含む): 25623360

約数和(自身を除く): 4107257

約数列:

[1, 7, 41, 61, 287, 427, 1229, 2501, 8603, 17507, 50389, 74969, 352723, 524783, 3073729, 21516103]

約数ペア:

[(1, 21516103), (7, 3073729), (41, 524783), (61, 352723), (287, 74969), (427, 50389), (1229, 17507), (2501, 8603)]