19958085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3727}}^1$

素因数の和:3762

約数の個数: 48

約数和(自身を含む): 41872896

約数和(自身を除く): 21914811

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3727, 5355, 11181, 18635, 26089, 33543, 55905, 63359, 78267, 130445, 167715, 190077, 234801, 316795, 391335, 443513, 570231, 950385, 1174005, 1330539, 2217565, 2851155, 3991617, 6652695, 19958085]

約数ペア:

[(1, 19958085), (3, 6652695), (5, 3991617), (7, 2851155), (9, 2217565), (15, 1330539), (17, 1174005), (21, 950385), (35, 570231), (45, 443513), (51, 391335), (63, 316795), (85, 234801), (105, 190077), (119, 167715), (153, 130445), (255, 78267), (315, 63359), (357, 55905), (595, 33543), (765, 26089), (1071, 18635), (1785, 11181), (3727, 5355)]