20961428736

素因数分解:

$2^8\times 3^1\times {\mathrm{3163}}^1\times {\mathrm{8629}}^1$

素因数の和:11811

約数の個数: 72

約数和(自身を含む): 55812074080

約数和(自身を除く): 34850645344

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768, 3163, 6326, 8629, 9489, 12652, 17258, 18978, 25304, 25887, 34516, 37956, 50608, 51774, 69032, 75912, 101216, 103548, 138064, 151824, 202432, 207096, 276128, 303648, 404864, 414192, 552256, 607296, 809728, 828384, 1104512, 1214592, 1656768, 2209024, 2429184, 3313536, 6627072, 27293527, 54587054, 81880581, 109174108, 163761162, 218348216, 327522324, 436696432, 655044648, 873392864, 1310089296, 1746785728, 2620178592, 3493571456, 5240357184, 6987142912, 10480714368, 20961428736]

約数ペア:

[(1, 20961428736), (2, 10480714368), (3, 6987142912), (4, 5240357184), (6, 3493571456), (8, 2620178592), (12, 1746785728), (16, 1310089296), (24, 873392864), (32, 655044648), (48, 436696432), (64, 327522324), (96, 218348216), (128, 163761162), (192, 109174108), (256, 81880581), (384, 54587054), (768, 27293527), (3163, 6627072), (6326, 3313536), (8629, 2429184), (9489, 2209024), (12652, 1656768), (17258, 1214592), (18978, 1104512), (25304, 828384), (25887, 809728), (34516, 607296), (37956, 552256), (50608, 414192), (51774, 404864), (69032, 303648), (75912, 276128), (101216, 207096), (103548, 202432), (138064, 151824)]