81311355

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{95101}}^1$

素因数の和:95131

約数の個数: 24

約数和(自身を含む): 148359120

約数和(自身を除く): 67047765

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 95101, 285303, 475505, 855909, 1426515, 1806919, 4279545, 5420757, 9034595, 16262271, 27103785, 81311355]

約数ペア:

[(1, 81311355), (3, 27103785), (5, 16262271), (9, 9034595), (15, 5420757), (19, 4279545), (45, 1806919), (57, 1426515), (95, 855909), (171, 475505), (285, 285303), (855, 95101)]