19487188

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 21397292

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 103, 116, 203, 206, 233, 406, 412, 466, 721, 812, 932, 1442, 1631, 2884, 2987, 3262, 5974, 6524, 6757, 11948, 13514, 20909, 23999, 27028, 41818, 47299, 47998, 83636, 94598, 95996, 167993, 189196, 335986, 671972, 695971, 1391942, 2783884, 4871797, 9743594, 19487188]

約数ペア:

[(1, 19487188), (2, 9743594), (4, 4871797), (7, 2783884), (14, 1391942), (28, 695971), (29, 671972), (58, 335986), (103, 189196), (116, 167993), (203, 95996), (206, 94598), (233, 83636), (406, 47998), (412, 47299), (466, 41818), (721, 27028), (812, 23999), (932, 20909), (1442, 13514), (1631, 11948), (2884, 6757), (2987, 6524), (3262, 5974)]