19128915

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1764

約数の個数: 48

約数和(自身を含む): 37608480

約数和(自身を除く): 18479565

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1721, 2223, 3705, 5163, 8605, 11115, 15489, 22373, 25815, 32699, 67119, 77445, 98097, 111865, 163495, 201357, 294291, 335595, 425087, 490485, 1006785, 1275261, 1471455, 2125435, 3825783, 6376305, 19128915]

約数ペア:

[(1, 19128915), (3, 6376305), (5, 3825783), (9, 2125435), (13, 1471455), (15, 1275261), (19, 1006785), (39, 490485), (45, 425087), (57, 335595), (65, 294291), (95, 201357), (117, 163495), (171, 111865), (195, 98097), (247, 77445), (285, 67119), (585, 32699), (741, 25815), (855, 22373), (1235, 15489), (1721, 11115), (2223, 8605), (3705, 5163)]