81011505

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{21517}}^1$

素因数の和:21776

約数の個数: 16

約数和(自身を含む): 130140864

約数和(自身を除く): 49129359

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 21517, 64551, 107585, 322755, 5400767, 16202301, 27003835, 81011505]

約数ペア:

[(1, 81011505), (3, 27003835), (5, 16202301), (15, 5400767), (251, 322755), (753, 107585), (1255, 64551), (3765, 21517)]