21365787

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5303}}^1$

素因数の和:5402

約数の個数: 16

約数和(自身を含む): 30551040

約数和(自身を除く): 9185253

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5303, 15909, 90151, 270453, 418937, 1256811, 7121929, 21365787]

約数ペア:

[(1, 21365787), (3, 7121929), (17, 1256811), (51, 418937), (79, 270453), (237, 90151), (1343, 15909), (4029, 5303)]