21132452920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1\times {\mathrm{12437}}^1$

素因数の和:12952

約数の個数: 64

約数和(自身を含む): 48117149280

約数和(自身を除く): 26984696360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 397, 428, 535, 794, 856, 1070, 1588, 1985, 2140, 3176, 3970, 4280, 7940, 12437, 15880, 24874, 42479, 49748, 62185, 84958, 99496, 124370, 169916, 212395, 248740, 339832, 424790, 497480, 849580, 1330759, 1699160, 2661518, 4937489, 5323036, 6653795, 9874978, 10646072, 13307590, 19749956, 24687445, 26615180, 39499912, 49374890, 53230360, 98749780, 197499560, 528311323, 1056622646, 2113245292, 2641556615, 4226490584, 5283113230, 10566226460, 21132452920]

約数ペア:

[(1, 21132452920), (2, 10566226460), (4, 5283113230), (5, 4226490584), (8, 2641556615), (10, 2113245292), (20, 1056622646), (40, 528311323), (107, 197499560), (214, 98749780), (397, 53230360), (428, 49374890), (535, 39499912), (794, 26615180), (856, 24687445), (1070, 19749956), (1588, 13307590), (1985, 10646072), (2140, 9874978), (3176, 6653795), (3970, 5323036), (4280, 4937489), (7940, 2661518), (12437, 1699160), (15880, 1330759), (24874, 849580), (42479, 497480), (49748, 424790), (62185, 339832), (84958, 248740), (99496, 212395), (124370, 169916)]