21891018

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{16361}}^1$

素因数の和:16589

約数の個数: 16

約数和(自身を含む): 43981056

約数和(自身を除く): 22090038

約数列:

[1, 2, 3, 6, 223, 446, 669, 1338, 16361, 32722, 49083, 98166, 3648503, 7297006, 10945509, 21891018]

約数ペア:

[(1, 21891018), (2, 10945509), (3, 7297006), (6, 3648503), (223, 98166), (446, 49083), (669, 32722), (1338, 16361)]