21510370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2243}}^1$

素因数の和:2394

約数の個数: 32

約数和(自身を含む): 44592768

約数和(自身を除く): 23082398

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 2243, 4486, 4795, 9590, 11215, 15701, 22430, 31402, 78505, 157010, 307291, 614582, 1536455, 2151037, 3072910, 4302074, 10755185, 21510370]

約数ペア:

[(1, 21510370), (2, 10755185), (5, 4302074), (7, 3072910), (10, 2151037), (14, 1536455), (35, 614582), (70, 307291), (137, 157010), (274, 78505), (685, 31402), (959, 22430), (1370, 15701), (1918, 11215), (2243, 9590), (4486, 4795)]