20502972

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 108

約数和(自身を含む): 61621560

約数和(自身を除く): 41118588

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 59, 63, 84, 98, 118, 126, 147, 177, 196, 197, 236, 252, 294, 354, 394, 413, 441, 531, 588, 591, 708, 788, 826, 882, 1062, 1182, 1239, 1379, 1652, 1764, 1773, 2124, 2364, 2478, 2758, 2891, 3546, 3717, 4137, 4956, 5516, 5782, 7092, 7434, 8274, 8673, 9653, 11564, 11623, 12411, 14868, 16548, 17346, 19306, 23246, 24822, 26019, 28959, 34692, 34869, 38612, 46492, 49644, 52038, 57918, 69738, 81361, 86877, 104076, 104607, 115836, 139476, 162722, 173754, 209214, 244083, 325444, 347508, 418428, 488166, 569527, 732249, 976332, 1139054, 1464498, 1708581, 2278108, 2928996, 3417162, 5125743, 6834324, 10251486, 20502972]

約数ペア:

[(1, 20502972), (2, 10251486), (3, 6834324), (4, 5125743), (6, 3417162), (7, 2928996), (9, 2278108), (12, 1708581), (14, 1464498), (18, 1139054), (21, 976332), (28, 732249), (36, 569527), (42, 488166), (49, 418428), (59, 347508), (63, 325444), (84, 244083), (98, 209214), (118, 173754), (126, 162722), (147, 139476), (177, 115836), (196, 104607), (197, 104076), (236, 86877), (252, 81361), (294, 69738), (354, 57918), (394, 52038), (413, 49644), (441, 46492), (531, 38612), (588, 34869), (591, 34692), (708, 28959), (788, 26019), (826, 24822), (882, 23246), (1062, 19306), (1182, 17346), (1239, 16548), (1379, 14868), (1652, 12411), (1764, 11623), (1773, 11564), (2124, 9653), (2364, 8673), (2478, 8274), (2758, 7434), (2891, 7092), (3546, 5782), (3717, 5516), (4137, 4956)]