21171222

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1677

約数の個数: 48

約数和(自身を含む): 49729680

約数和(自身を除く): 28558458

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 43, 51, 86, 102, 129, 153, 258, 306, 387, 731, 774, 1462, 1609, 2193, 3218, 4386, 4827, 6579, 9654, 13158, 14481, 27353, 28962, 54706, 69187, 82059, 138374, 164118, 207561, 246177, 415122, 492354, 622683, 1176179, 1245366, 2352358, 3528537, 7057074, 10585611, 21171222]

約数ペア:

[(1, 21171222), (2, 10585611), (3, 7057074), (6, 3528537), (9, 2352358), (17, 1245366), (18, 1176179), (34, 622683), (43, 492354), (51, 415122), (86, 246177), (102, 207561), (129, 164118), (153, 138374), (258, 82059), (306, 69187), (387, 54706), (731, 28962), (774, 27353), (1462, 14481), (1609, 13158), (2193, 9654), (3218, 6579), (4386, 4827)]