15380001

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 27780480

約数和(自身を除く): 12400479

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 211, 267, 273, 623, 633, 801, 819, 1157, 1477, 1869, 1899, 2743, 3471, 4431, 5607, 8099, 8229, 10413, 13293, 18779, 19201, 24297, 24687, 56337, 57603, 72891, 131453, 169011, 172809, 244127, 394359, 732381, 1183077, 1708889, 2197143, 5126667, 15380001]

約数ペア:

[(1, 15380001), (3, 5126667), (7, 2197143), (9, 1708889), (13, 1183077), (21, 732381), (39, 394359), (63, 244127), (89, 172809), (91, 169011), (117, 131453), (211, 72891), (267, 57603), (273, 56337), (623, 24687), (633, 24297), (801, 19201), (819, 18779), (1157, 13293), (1477, 10413), (1869, 8229), (1899, 8099), (2743, 5607), (3471, 4431)]