18858861

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{641}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 31247424

約数和(自身を除く): 12388563

約数列:

[1, 3, 7, 9, 21, 63, 467, 641, 1401, 1923, 3269, 4203, 4487, 5769, 9807, 13461, 29421, 40383, 299347, 898041, 2095429, 2694123, 6286287, 18858861]

約数ペア:

[(1, 18858861), (3, 6286287), (7, 2694123), (9, 2095429), (21, 898041), (63, 299347), (467, 40383), (641, 29421), (1401, 13461), (1923, 9807), (3269, 5769), (4203, 4487)]