21968427

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1347

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 12706773

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1289, 1311, 3867, 5681, 16757, 17043, 24491, 29647, 50271, 73473, 88941, 318383, 385411, 563293, 955149, 1156233, 1689879, 7322809, 21968427]

約数ペア:

[(1, 21968427), (3, 7322809), (13, 1689879), (19, 1156233), (23, 955149), (39, 563293), (57, 385411), (69, 318383), (247, 88941), (299, 73473), (437, 50271), (741, 29647), (897, 24491), (1289, 17043), (1311, 16757), (3867, 5681)]