20681386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49477}}^1$

素因数の和:49509

約数の個数: 16

約数和(自身を含む): 35624160

約数和(自身を除く): 14942774

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49477, 98954, 544247, 940063, 1088494, 1880126, 10340693, 20681386]

約数ペア:

[(1, 20681386), (2, 10340693), (11, 1880126), (19, 1088494), (22, 940063), (38, 544247), (209, 98954), (418, 49477)]