20878928

素因数分解:

$2^4\times 7^1\times {\mathrm{186419}}^1$

素因数の和:186434

約数の個数: 20

約数和(自身を含む): 46232160

約数和(自身を除く): 25353232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 186419, 372838, 745676, 1304933, 1491352, 2609866, 2982704, 5219732, 10439464, 20878928]

約数ペア:

[(1, 20878928), (2, 10439464), (4, 5219732), (7, 2982704), (8, 2609866), (14, 1491352), (16, 1304933), (28, 745676), (56, 372838), (112, 186419)]