21834890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4051}}^1$

素因数の和:4083

約数の個数: 48

約数和(自身を含む): 49888224

約数和(自身を除く): 28053334

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 4051, 5390, 8102, 20255, 28357, 40510, 44561, 56714, 89122, 141785, 198499, 222805, 283570, 311927, 396998, 445610, 623854, 992495, 1559635, 1984990, 2183489, 3119270, 4366978, 10917445, 21834890]

約数ペア:

[(1, 21834890), (2, 10917445), (5, 4366978), (7, 3119270), (10, 2183489), (11, 1984990), (14, 1559635), (22, 992495), (35, 623854), (49, 445610), (55, 396998), (70, 311927), (77, 283570), (98, 222805), (110, 198499), (154, 141785), (245, 89122), (385, 56714), (490, 44561), (539, 40510), (770, 28357), (1078, 20255), (2695, 8102), (4051, 5390)]