18705729

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 30468096

約数和(自身を除く): 11762367

約数列:

[1, 3, 7, 17, 21, 51, 119, 151, 347, 357, 453, 1041, 1057, 2429, 2567, 3171, 5899, 7287, 7701, 17697, 17969, 41293, 52397, 53907, 123879, 157191, 366779, 890749, 1100337, 2672247, 6235243, 18705729]

約数ペア:

[(1, 18705729), (3, 6235243), (7, 2672247), (17, 1100337), (21, 890749), (51, 366779), (119, 157191), (151, 123879), (347, 53907), (357, 52397), (453, 41293), (1041, 17969), (1057, 17697), (2429, 7701), (2567, 7287), (3171, 5899)]