209376981

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 377612928

約数和(自身を除く): 168235947

約数列:

[1, 3, 9, 11, 17, 23, 27, 33, 51, 69, 81, 99, 153, 187, 207, 253, 297, 391, 459, 561, 601, 621, 759, 891, 1173, 1377, 1683, 1803, 1863, 2277, 3519, 4301, 5049, 5409, 6611, 6831, 10217, 10557, 12903, 13823, 15147, 16227, 19833, 20493, 30651, 31671, 38709, 41469, 48681, 59499, 91953, 112387, 116127, 124407, 152053, 178497, 234991, 275859, 337161, 348381, 373221, 456159, 535491, 704973, 827577, 1011483, 1119663, 1368477, 2114919, 2584901, 3034449, 4105431, 6344757, 7754703, 9103347, 12316293, 19034271, 23264109, 69792327, 209376981]

約数ペア:

[(1, 209376981), (3, 69792327), (9, 23264109), (11, 19034271), (17, 12316293), (23, 9103347), (27, 7754703), (33, 6344757), (51, 4105431), (69, 3034449), (81, 2584901), (99, 2114919), (153, 1368477), (187, 1119663), (207, 1011483), (253, 827577), (297, 704973), (391, 535491), (459, 456159), (561, 373221), (601, 348381), (621, 337161), (759, 275859), (891, 234991), (1173, 178497), (1377, 152053), (1683, 124407), (1803, 116127), (1863, 112387), (2277, 91953), (3519, 59499), (4301, 48681), (5049, 41469), (5409, 38709), (6611, 31671), (6831, 30651), (10217, 20493), (10557, 19833), (12903, 16227), (13823, 15147)]