207640503

素因数分解:

$3^4\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1459}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 356146560

約数和(自身を除く): 148506057

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 251, 567, 753, 1459, 1757, 2259, 4377, 5271, 6777, 10213, 13131, 15813, 20331, 30639, 39393, 47439, 91917, 118179, 142317, 275751, 366209, 827253, 1098627, 2563463, 3295881, 7690389, 9887643, 23071167, 29662929, 69213501, 207640503]

約数ペア:

[(1, 207640503), (3, 69213501), (7, 29662929), (9, 23071167), (21, 9887643), (27, 7690389), (63, 3295881), (81, 2563463), (189, 1098627), (251, 827253), (567, 366209), (753, 275751), (1459, 142317), (1757, 118179), (2259, 91917), (4377, 47439), (5271, 39393), (6777, 30639), (10213, 20331), (13131, 15813)]