21577452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{881}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 54627552

約数和(自身を除く): 33050100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 881, 942, 1762, 1884, 2041, 2643, 3524, 4082, 5286, 6123, 8164, 10572, 11453, 12246, 22906, 24492, 34359, 45812, 68718, 137436, 138317, 276634, 414951, 553268, 829902, 1659804, 1798121, 3596242, 5394363, 7192484, 10788726, 21577452]

約数ペア:

[(1, 21577452), (2, 10788726), (3, 7192484), (4, 5394363), (6, 3596242), (12, 1798121), (13, 1659804), (26, 829902), (39, 553268), (52, 414951), (78, 276634), (156, 138317), (157, 137436), (314, 68718), (471, 45812), (628, 34359), (881, 24492), (942, 22906), (1762, 12246), (1884, 11453), (2041, 10572), (2643, 8164), (3524, 6123), (4082, 5286)]