18360459

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 31289440

約数和(自身を除く): 12928981

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 181, 221, 289, 351, 459, 543, 663, 867, 1629, 1989, 2353, 2601, 3077, 3757, 4887, 5967, 7059, 7803, 9231, 11271, 21177, 27693, 33813, 40001, 52309, 63531, 83079, 101439, 120003, 156927, 360009, 470781, 680017, 1080027, 1412343, 2040051, 6120153, 18360459]

約数ペア:

[(1, 18360459), (3, 6120153), (9, 2040051), (13, 1412343), (17, 1080027), (27, 680017), (39, 470781), (51, 360009), (117, 156927), (153, 120003), (181, 101439), (221, 83079), (289, 63531), (351, 52309), (459, 40001), (543, 33813), (663, 27693), (867, 21177), (1629, 11271), (1989, 9231), (2353, 7803), (2601, 7059), (3077, 5967), (3757, 4887)]