21971824

素因数分解:

$2^4\times 7^1\times {\mathrm{196177}}^1$

素因数の和:196192

約数の個数: 20

約数和(自身を含む): 48652144

約数和(自身を除く): 26680320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 196177, 392354, 784708, 1373239, 1569416, 2746478, 3138832, 5492956, 10985912, 21971824]

約数ペア:

[(1, 21971824), (2, 10985912), (4, 5492956), (7, 3138832), (8, 2746478), (14, 1569416), (16, 1373239), (28, 784708), (56, 392354), (112, 196177)]