19808982

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 27711018

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 43, 54, 57, 86, 114, 129, 171, 258, 342, 387, 449, 513, 774, 817, 898, 1026, 1161, 1347, 1634, 2322, 2451, 2694, 4041, 4902, 7353, 8082, 8531, 12123, 14706, 17062, 19307, 22059, 24246, 25593, 38614, 44118, 51186, 57921, 76779, 115842, 153558, 173763, 230337, 347526, 366833, 460674, 521289, 733666, 1042578, 1100499, 2200998, 3301497, 6602994, 9904491, 19808982]

約数ペア:

[(1, 19808982), (2, 9904491), (3, 6602994), (6, 3301497), (9, 2200998), (18, 1100499), (19, 1042578), (27, 733666), (38, 521289), (43, 460674), (54, 366833), (57, 347526), (86, 230337), (114, 173763), (129, 153558), (171, 115842), (258, 76779), (342, 57921), (387, 51186), (449, 44118), (513, 38614), (774, 25593), (817, 24246), (898, 22059), (1026, 19307), (1161, 17062), (1347, 14706), (1634, 12123), (2322, 8531), (2451, 8082), (2694, 7353), (4041, 4902)]