21991172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{21227}}^1$

素因数の和:21275

約数の個数: 24

約数和(自身を含む): 45173184

約数和(自身を除く): 23182012

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 21227, 42454, 84908, 148589, 297178, 594356, 785399, 1570798, 3141596, 5497793, 10995586, 21991172]

約数ペア:

[(1, 21991172), (2, 10995586), (4, 5497793), (7, 3141596), (14, 1570798), (28, 785399), (37, 594356), (74, 297178), (148, 148589), (259, 84908), (518, 42454), (1036, 21227)]