21422907

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4243}}^1$

素因数の和:4280

約数の個数: 32

約数和(自身を含む): 36668160

約数和(自身を除く): 15245253

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 153, 187, 297, 459, 561, 1683, 4243, 5049, 12729, 38187, 46673, 72131, 114561, 140019, 216393, 420057, 649179, 793441, 1260171, 1947537, 2380323, 7140969, 21422907]

約数ペア:

[(1, 21422907), (3, 7140969), (9, 2380323), (11, 1947537), (17, 1260171), (27, 793441), (33, 649179), (51, 420057), (99, 216393), (153, 140019), (187, 114561), (297, 72131), (459, 46673), (561, 38187), (1683, 12729), (4243, 5049)]