209880909

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{30013}}^1$

素因数の和:30066

約数の個数: 32

約数和(自身を含む): 364970240

約数和(自身を除く): 155089331

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 30013, 90039, 210091, 270117, 630273, 810351, 1110481, 1890819, 3331443, 5672457, 7773367, 9994329, 23320101, 29982987, 69960303, 209880909]

約数ペア:

[(1, 209880909), (3, 69960303), (7, 29982987), (9, 23320101), (21, 9994329), (27, 7773367), (37, 5672457), (63, 3331443), (111, 1890819), (189, 1110481), (259, 810351), (333, 630273), (777, 270117), (999, 210091), (2331, 90039), (6993, 30013)]