20138386

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4919}}^1$

素因数の和:5033

約数の個数: 16

約数和(自身を含む): 31881600

約数和(自身を除く): 11743214

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 4919, 9838, 113137, 226274, 437791, 875582, 10069193, 20138386]

約数ペア:

[(1, 20138386), (2, 10069193), (23, 875582), (46, 437791), (89, 226274), (178, 113137), (2047, 9838), (4094, 4919)]