18601209

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 33196800

約数和(自身を除く): 14595591

約数列:

[1, 3, 9, 11, 19, 29, 31, 33, 57, 87, 93, 99, 121, 171, 209, 261, 279, 319, 341, 363, 551, 589, 627, 899, 957, 1023, 1089, 1653, 1767, 1881, 2299, 2697, 2871, 3069, 3509, 3751, 4959, 5301, 6061, 6479, 6897, 8091, 9889, 10527, 11253, 17081, 18183, 19437, 20691, 29667, 31581, 33759, 51243, 54549, 58311, 66671, 71269, 89001, 108779, 153729, 187891, 200013, 213807, 326337, 563673, 600039, 641421, 979011, 1691019, 2066801, 6200403, 18601209]

約数ペア:

[(1, 18601209), (3, 6200403), (9, 2066801), (11, 1691019), (19, 979011), (29, 641421), (31, 600039), (33, 563673), (57, 326337), (87, 213807), (93, 200013), (99, 187891), (121, 153729), (171, 108779), (209, 89001), (261, 71269), (279, 66671), (319, 58311), (341, 54549), (363, 51243), (551, 33759), (589, 31581), (627, 29667), (899, 20691), (957, 19437), (1023, 18183), (1089, 17081), (1653, 11253), (1767, 10527), (1881, 9889), (2299, 8091), (2697, 6897), (2871, 6479), (3069, 6061), (3509, 5301), (3751, 4959)]