21303681

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6301}}^1$

素因数の和:6341

約数の個数: 24

約数和(自身を含む): 34484544

約数和(自身を除く): 13180863

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6301, 18903, 44107, 132321, 144923, 308749, 434769, 926247, 1014461, 3043383, 7101227, 21303681]

約数ペア:

[(1, 21303681), (3, 7101227), (7, 3043383), (21, 1014461), (23, 926247), (49, 434769), (69, 308749), (147, 144923), (161, 132321), (483, 44107), (1127, 18903), (3381, 6301)]