81213265

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{38039}}^1$

素因数の和:38112

約数の個数: 16

約数和(自身を含む): 113207040

約数和(自身を除く): 31993775

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 38039, 190195, 266273, 1331365, 2320379, 11601895, 16242653, 81213265]

約数ペア:

[(1, 81213265), (5, 16242653), (7, 11601895), (35, 2320379), (61, 1331365), (305, 266273), (427, 190195), (2135, 38039)]