21076930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1087}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 43554816

約数和(自身を除く): 22477886

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 277, 554, 1087, 1385, 1939, 2174, 2770, 3878, 5435, 7609, 9695, 10870, 15218, 19390, 38045, 76090, 301099, 602198, 1505495, 2107693, 3010990, 4215386, 10538465, 21076930]

約数ペア:

[(1, 21076930), (2, 10538465), (5, 4215386), (7, 3010990), (10, 2107693), (14, 1505495), (35, 602198), (70, 301099), (277, 76090), (554, 38045), (1087, 19390), (1385, 15218), (1939, 10870), (2174, 9695), (2770, 7609), (3878, 5435)]