81403647

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{601}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 122981376

約数和(自身を除く): 41577729

約数列:

[1, 3, 13, 23, 39, 69, 151, 299, 453, 601, 897, 1803, 1963, 3473, 5889, 7813, 10419, 13823, 23439, 41469, 45149, 90751, 135447, 179699, 272253, 539097, 1179763, 2087273, 3539289, 6261819, 27134549, 81403647]

約数ペア:

[(1, 81403647), (3, 27134549), (13, 6261819), (23, 3539289), (39, 2087273), (69, 1179763), (151, 539097), (299, 272253), (453, 179699), (601, 135447), (897, 90751), (1803, 45149), (1963, 41469), (3473, 23439), (5889, 13823), (7813, 10419)]