20783169

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 16080831

約数列:

[1, 3, 9, 11, 19, 27, 29, 33, 57, 87, 99, 127, 171, 209, 261, 297, 319, 381, 513, 551, 627, 783, 957, 1143, 1397, 1653, 1881, 2413, 2871, 3429, 3683, 4191, 4959, 5643, 6061, 7239, 8613, 11049, 12573, 14877, 18183, 21717, 26543, 33147, 37719, 40513, 54549, 65151, 69977, 79629, 99441, 121539, 163647, 209931, 238887, 364617, 629793, 716661, 769747, 1093851, 1889379, 2309241, 6927723, 20783169]

約数ペア:

[(1, 20783169), (3, 6927723), (9, 2309241), (11, 1889379), (19, 1093851), (27, 769747), (29, 716661), (33, 629793), (57, 364617), (87, 238887), (99, 209931), (127, 163647), (171, 121539), (209, 99441), (261, 79629), (297, 69977), (319, 65151), (381, 54549), (513, 40513), (551, 37719), (627, 33147), (783, 26543), (957, 21717), (1143, 18183), (1397, 14877), (1653, 12573), (1881, 11049), (2413, 8613), (2871, 7239), (3429, 6061), (3683, 5643), (4191, 4959)]