217279438

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{20011}}^1$

素因数の和:20163

約数の個数: 16

約数和(自身を含む): 335000880

約数和(自身を除く): 117721442

約数列:

[1, 2, 61, 89, 122, 178, 5429, 10858, 20011, 40022, 1220671, 1780979, 2441342, 3561958, 108639719, 217279438]

約数ペア:

[(1, 217279438), (2, 108639719), (61, 3561958), (89, 2441342), (122, 1780979), (178, 1220671), (5429, 40022), (10858, 20011)]