19002008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 37061760

約数和(自身を除く): 18059752

約数列:

[1, 2, 4, 8, 31, 62, 124, 193, 248, 386, 397, 772, 794, 1544, 1588, 3176, 5983, 11966, 12307, 23932, 24614, 47864, 49228, 76621, 98456, 153242, 306484, 612968, 2375251, 4750502, 9501004, 19002008]

約数ペア:

[(1, 19002008), (2, 9501004), (4, 4750502), (8, 2375251), (31, 612968), (62, 306484), (124, 153242), (193, 98456), (248, 76621), (386, 49228), (397, 47864), (772, 24614), (794, 23932), (1544, 12307), (1588, 11966), (3176, 5983)]