21686769

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8059}}^1$

素因数の和:8101

約数の個数: 24

約数和(自身を含む): 35206080

約数和(自身を除く): 13519311

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 8059, 24177, 72531, 104767, 185357, 314301, 556071, 942903, 1668213, 2409641, 7228923, 21686769]

約数ペア:

[(1, 21686769), (3, 7228923), (9, 2409641), (13, 1668213), (23, 942903), (39, 556071), (69, 314301), (117, 185357), (207, 104767), (299, 72531), (897, 24177), (2691, 8059)]