21274890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7793}}^1$

素因数の和:7823

約数の個数: 64

約数和(自身を含む): 62850816

約数和(自身を除く): 41575926

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7793, 15586, 23379, 38965, 46758, 54551, 77930, 101309, 109102, 116895, 163653, 202618, 233790, 272755, 303927, 327306, 506545, 545510, 607854, 709163, 818265, 1013090, 1418326, 1519635, 1636530, 2127489, 3039270, 3545815, 4254978, 7091630, 10637445, 21274890]

約数ペア:

[(1, 21274890), (2, 10637445), (3, 7091630), (5, 4254978), (6, 3545815), (7, 3039270), (10, 2127489), (13, 1636530), (14, 1519635), (15, 1418326), (21, 1013090), (26, 818265), (30, 709163), (35, 607854), (39, 545510), (42, 506545), (65, 327306), (70, 303927), (78, 272755), (91, 233790), (105, 202618), (130, 163653), (182, 116895), (195, 109102), (210, 101309), (273, 77930), (390, 54551), (455, 46758), (546, 38965), (910, 23379), (1365, 15586), (2730, 7793)]