21188841

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5557}}^1$

素因数の和:5632

約数の個数: 16

約数和(自身を含む): 29879808

約数和(自身を除く): 8690967

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5557, 16671, 172267, 227837, 516801, 683511, 7062947, 21188841]

約数ペア:

[(1, 21188841), (3, 7062947), (31, 683511), (41, 516801), (93, 227837), (123, 172267), (1271, 16671), (3813, 5557)]