21820072

素因数分解:

$2^3\times {\mathrm{1583}}^1\times {\mathrm{1723}}^1$

素因数の和:3312

約数の個数: 16

約数和(自身を含む): 40962240

約数和(自身を除く): 19142168

約数列:

[1, 2, 4, 8, 1583, 1723, 3166, 3446, 6332, 6892, 12664, 13784, 2727509, 5455018, 10910036, 21820072]

約数ペア:

[(1, 21820072), (2, 10910036), (4, 5455018), (8, 2727509), (1583, 13784), (1723, 12664), (3166, 6892), (3446, 6332)]