21007029231

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{1999}}^1\times {\mathrm{50767}}^1$

素因数の和:52795

約数の個数: 24

約数和(自身を含む): 31679232000

約数和(自身を除く): 10672202769

約数列:

[1, 3, 9, 23, 69, 207, 1999, 5997, 17991, 45977, 50767, 137931, 152301, 413793, 456903, 1167641, 3502923, 10508769, 101483233, 304449699, 913349097, 2334114359, 7002343077, 21007029231]

約数ペア:

[(1, 21007029231), (3, 7002343077), (9, 2334114359), (23, 913349097), (69, 304449699), (207, 101483233), (1999, 10508769), (5997, 3502923), (17991, 1167641), (45977, 456903), (50767, 413793), (137931, 152301)]