13205988

素因数分解:

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

素因数の和:521

約数の個数: 72

約数和(自身を含む): 36036000

約数和(自身を除く): 22830012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 449, 516, 684, 774, 817, 898, 1347, 1548, 1634, 1796, 2451, 2694, 3268, 4041, 4902, 5388, 7353, 8082, 8531, 9804, 14706, 16164, 17062, 19307, 25593, 29412, 34124, 38614, 51186, 57921, 76779, 77228, 102372, 115842, 153558, 173763, 231684, 307116, 347526, 366833, 695052, 733666, 1100499, 1467332, 2200998, 3301497, 4401996, 6602994, 13205988]

約数ペア:

[(1, 13205988), (2, 6602994), (3, 4401996), (4, 3301497), (6, 2200998), (9, 1467332), (12, 1100499), (18, 733666), (19, 695052), (36, 366833), (38, 347526), (43, 307116), (57, 231684), (76, 173763), (86, 153558), (114, 115842), (129, 102372), (171, 77228), (172, 76779), (228, 57921), (258, 51186), (342, 38614), (387, 34124), (449, 29412), (516, 25593), (684, 19307), (774, 17062), (817, 16164), (898, 14706), (1347, 9804), (1548, 8531), (1634, 8082), (1796, 7353), (2451, 5388), (2694, 4902), (3268, 4041)]