20866196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 41383440

約数和(自身を除く): 20517244

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 101, 116, 137, 202, 274, 377, 404, 548, 754, 1313, 1508, 1781, 2626, 2929, 3562, 3973, 5252, 5858, 7124, 7946, 11716, 13837, 15892, 27674, 38077, 51649, 55348, 76154, 103298, 152308, 179881, 206596, 359762, 401273, 719524, 802546, 1605092, 5216549, 10433098, 20866196]

約数ペア:

[(1, 20866196), (2, 10433098), (4, 5216549), (13, 1605092), (26, 802546), (29, 719524), (52, 401273), (58, 359762), (101, 206596), (116, 179881), (137, 152308), (202, 103298), (274, 76154), (377, 55348), (404, 51649), (548, 38077), (754, 27674), (1313, 15892), (1508, 13837), (1781, 11716), (2626, 7946), (2929, 7124), (3562, 5858), (3973, 5252)]