19618228

素因数分解:

$2^2\times 7^3\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 40768000

約数和(自身を除く): 21149772

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 181, 196, 316, 343, 362, 553, 686, 724, 1106, 1267, 1372, 2212, 2534, 3871, 5068, 7742, 8869, 14299, 15484, 17738, 27097, 28598, 35476, 54194, 57196, 62083, 100093, 108388, 124166, 200186, 248332, 400372, 700651, 1401302, 2802604, 4904557, 9809114, 19618228]

約数ペア:

[(1, 19618228), (2, 9809114), (4, 4904557), (7, 2802604), (14, 1401302), (28, 700651), (49, 400372), (79, 248332), (98, 200186), (158, 124166), (181, 108388), (196, 100093), (316, 62083), (343, 57196), (362, 54194), (553, 35476), (686, 28598), (724, 27097), (1106, 17738), (1267, 15484), (1372, 14299), (2212, 8869), (2534, 7742), (3871, 5068)]