16681505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{857}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 21312720

約数和(自身を除く): 4631215

約数列:

[1, 5, 17, 85, 229, 857, 1145, 3893, 4285, 14569, 19465, 72845, 196253, 981265, 3336301, 16681505]

約数ペア:

[(1, 16681505), (5, 3336301), (17, 981265), (85, 196253), (229, 72845), (857, 19465), (1145, 14569), (3893, 4285)]