2666781

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 4333056

約数和(自身を除く): 1666275

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 991, 2691, 2973, 8919, 12883, 22793, 38649, 68379, 115947, 205137, 296309, 888927, 2666781]

約数ペア:

[(1, 2666781), (3, 888927), (9, 296309), (13, 205137), (23, 115947), (39, 68379), (69, 38649), (117, 22793), (207, 12883), (299, 8919), (897, 2973), (991, 2691)]