20181336

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{131}}^2$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 59142060

約数和(自身を除く): 38960724

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 131, 147, 168, 196, 262, 294, 392, 393, 524, 588, 786, 917, 1048, 1176, 1572, 1834, 2751, 3144, 3668, 5502, 6419, 7336, 11004, 12838, 17161, 19257, 22008, 25676, 34322, 38514, 51352, 51483, 68644, 77028, 102966, 120127, 137288, 154056, 205932, 240254, 360381, 411864, 480508, 720762, 840889, 961016, 1441524, 1681778, 2522667, 2883048, 3363556, 5045334, 6727112, 10090668, 20181336]

約数ペア:

[(1, 20181336), (2, 10090668), (3, 6727112), (4, 5045334), (6, 3363556), (7, 2883048), (8, 2522667), (12, 1681778), (14, 1441524), (21, 961016), (24, 840889), (28, 720762), (42, 480508), (49, 411864), (56, 360381), (84, 240254), (98, 205932), (131, 154056), (147, 137288), (168, 120127), (196, 102966), (262, 77028), (294, 68644), (392, 51483), (393, 51352), (524, 38514), (588, 34322), (786, 25676), (917, 22008), (1048, 19257), (1176, 17161), (1572, 12838), (1834, 11004), (2751, 7336), (3144, 6419), (3668, 5502)]