21197866

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:1029

約数の個数: 16

約数和(自身を含む): 32497920

約数和(自身を除く): 11300054

約数列:

[1, 2, 61, 122, 239, 478, 727, 1454, 14579, 29158, 44347, 88694, 173753, 347506, 10598933, 21197866]

約数ペア:

[(1, 21197866), (2, 10598933), (61, 347506), (122, 173753), (239, 88694), (478, 44347), (727, 29158), (1454, 14579)]