19876192

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1103

約数の個数: 48

約数和(自身を含む): 45269280

約数和(自身を除く): 25393088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 712, 997, 1246, 1424, 1994, 2492, 2848, 3988, 4984, 6979, 7976, 9968, 13958, 15952, 19936, 27916, 31904, 55832, 88733, 111664, 177466, 223328, 354932, 621131, 709864, 1242262, 1419728, 2484524, 2839456, 4969048, 9938096, 19876192]

約数ペア:

[(1, 19876192), (2, 9938096), (4, 4969048), (7, 2839456), (8, 2484524), (14, 1419728), (16, 1242262), (28, 709864), (32, 621131), (56, 354932), (89, 223328), (112, 177466), (178, 111664), (224, 88733), (356, 55832), (623, 31904), (712, 27916), (997, 19936), (1246, 15952), (1424, 13958), (1994, 9968), (2492, 7976), (2848, 6979), (3988, 4984)]