20405984

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37511}}^1$

素因数の和:37538

約数の個数: 24

約数和(自身を含む): 42538608

約数和(自身を除く): 22132624

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 37511, 75022, 150044, 300088, 600176, 637687, 1200352, 1275374, 2550748, 5101496, 10202992, 20405984]

約数ペア:

[(1, 20405984), (2, 10202992), (4, 5101496), (8, 2550748), (16, 1275374), (17, 1200352), (32, 637687), (34, 600176), (68, 300088), (136, 150044), (272, 75022), (544, 37511)]