20721912

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{50789}}^1$

素因数の和:50815

約数の個数: 32

約数和(自身を含む): 54853200

約数和(自身を除く): 34131288

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 50789, 101578, 152367, 203156, 304734, 406312, 609468, 863413, 1218936, 1726826, 2590239, 3453652, 5180478, 6907304, 10360956, 20721912]

約数ペア:

[(1, 20721912), (2, 10360956), (3, 6907304), (4, 5180478), (6, 3453652), (8, 2590239), (12, 1726826), (17, 1218936), (24, 863413), (34, 609468), (51, 406312), (68, 304734), (102, 203156), (136, 152367), (204, 101578), (408, 50789)]