21448264864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{328397}}^1$

素因数の和:328577

約数の個数: 48

約数和(自身を含む): 45764231688

約数和(自身を除く): 24315966824

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 314, 416, 628, 1256, 2041, 2512, 4082, 5024, 8164, 16328, 32656, 65312, 328397, 656794, 1313588, 2627176, 4269161, 5254352, 8538322, 10508704, 17076644, 34153288, 51558329, 68306576, 103116658, 136613152, 206233316, 412466632, 670258277, 824933264, 1340516554, 1649866528, 2681033108, 5362066216, 10724132432, 21448264864]

約数ペア:

[(1, 21448264864), (2, 10724132432), (4, 5362066216), (8, 2681033108), (13, 1649866528), (16, 1340516554), (26, 824933264), (32, 670258277), (52, 412466632), (104, 206233316), (157, 136613152), (208, 103116658), (314, 68306576), (416, 51558329), (628, 34153288), (1256, 17076644), (2041, 10508704), (2512, 8538322), (4082, 5254352), (5024, 4269161), (8164, 2627176), (16328, 1313588), (32656, 656794), (65312, 328397)]