21384687

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{10687}}^1$

素因数の和:10742

約数の個数: 16

約数和(自身を含む): 30781440

約数和(自身を除く): 9396753

約数列:

[1, 3, 23, 29, 69, 87, 667, 2001, 10687, 32061, 245801, 309923, 737403, 929769, 7128229, 21384687]

約数ペア:

[(1, 21384687), (3, 7128229), (23, 929769), (29, 737403), (69, 309923), (87, 245801), (667, 32061), (2001, 10687)]