213948009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{127123}}^1$

素因数の和:127157

約数の個数: 24

約数和(自身を含む): 356964192

約数和(自身を除く): 143016183

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 127123, 381369, 1144107, 1398353, 2161091, 4195059, 6483273, 12585177, 19449819, 23772001, 71316003, 213948009]

約数ペア:

[(1, 213948009), (3, 71316003), (9, 23772001), (11, 19449819), (17, 12585177), (33, 6483273), (51, 4195059), (99, 2161091), (153, 1398353), (187, 1144107), (561, 381369), (1683, 127123)]