18016845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 37877760

約数和(自身を除く): 19860915

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 77, 95, 105, 133, 165, 209, 231, 285, 385, 399, 627, 665, 821, 1045, 1155, 1463, 1995, 2463, 3135, 4105, 4389, 5747, 7315, 9031, 12315, 15599, 17241, 21945, 27093, 28735, 45155, 46797, 63217, 77995, 86205, 109193, 135465, 171589, 189651, 233985, 316085, 327579, 514767, 545965, 857945, 948255, 1201123, 1637895, 2573835, 3603369, 6005615, 18016845]

約数ペア:

[(1, 18016845), (3, 6005615), (5, 3603369), (7, 2573835), (11, 1637895), (15, 1201123), (19, 948255), (21, 857945), (33, 545965), (35, 514767), (55, 327579), (57, 316085), (77, 233985), (95, 189651), (105, 171589), (133, 135465), (165, 109193), (209, 86205), (231, 77995), (285, 63217), (385, 46797), (399, 45155), (627, 28735), (665, 27093), (821, 21945), (1045, 17241), (1155, 15599), (1463, 12315), (1995, 9031), (2463, 7315), (3135, 5747), (4105, 4389)]