21177206

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4481}}^1$

素因数の和:4639

約数の個数: 16

約数和(自身を含む): 33883920

約数和(自身を除く): 12706714

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4481, 4726, 8962, 76177, 152354, 622859, 1245718, 10588603, 21177206]

約数ペア:

[(1, 21177206), (2, 10588603), (17, 1245718), (34, 622859), (139, 152354), (278, 76177), (2363, 8962), (4481, 4726)]