13720413

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 22256640

約数和(自身を除く): 8536227

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 251, 399, 411, 753, 959, 1757, 2603, 2877, 4769, 5271, 7809, 14307, 18221, 33383, 34387, 54663, 100149, 103161, 240709, 653353, 722127, 1960059, 4573471, 13720413]

約数ペア:

[(1, 13720413), (3, 4573471), (7, 1960059), (19, 722127), (21, 653353), (57, 240709), (133, 103161), (137, 100149), (251, 54663), (399, 34387), (411, 33383), (753, 18221), (959, 14307), (1757, 7809), (2603, 5271), (2877, 4769)]