19987744

素因数分解:

$2^5\times 7^1\times {\mathrm{89231}}^1$

素因数の和:89248

約数の個数: 24

約数和(自身を含む): 44972928

約数和(自身を除く): 24985184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 89231, 178462, 356924, 624617, 713848, 1249234, 1427696, 2498468, 2855392, 4996936, 9993872, 19987744]

約数ペア:

[(1, 19987744), (2, 9993872), (4, 4996936), (7, 2855392), (8, 2498468), (14, 1427696), (16, 1249234), (28, 713848), (32, 624617), (56, 356924), (112, 178462), (224, 89231)]