21360350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 44032896

約数和(自身を除く): 22672546

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 547, 550, 710, 781, 1094, 1562, 1775, 2735, 3550, 3905, 5470, 6017, 7810, 12034, 13675, 19525, 27350, 30085, 38837, 39050, 60170, 77674, 150425, 194185, 300850, 388370, 427207, 854414, 970925, 1941850, 2136035, 4272070, 10680175, 21360350]

約数ペア:

[(1, 21360350), (2, 10680175), (5, 4272070), (10, 2136035), (11, 1941850), (22, 970925), (25, 854414), (50, 427207), (55, 388370), (71, 300850), (110, 194185), (142, 150425), (275, 77674), (355, 60170), (547, 39050), (550, 38837), (710, 30085), (781, 27350), (1094, 19525), (1562, 13675), (1775, 12034), (2735, 7810), (3550, 6017), (3905, 5470)]