11720247

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 19699200

約数和(自身を除く): 7978953

約数列:

[1, 3, 7, 11, 21, 33, 77, 113, 231, 339, 449, 791, 1243, 1347, 2373, 3143, 3729, 4939, 8701, 9429, 14817, 26103, 34573, 50737, 103719, 152211, 355159, 558107, 1065477, 1674321, 3906749, 11720247]

約数ペア:

[(1, 11720247), (3, 3906749), (7, 1674321), (11, 1065477), (21, 558107), (33, 355159), (77, 152211), (113, 103719), (231, 50737), (339, 34573), (449, 26103), (791, 14817), (1243, 9429), (1347, 8701), (2373, 4939), (3143, 3729)]