18701319

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 31220224

約数和(自身を除く): 12518905

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 183, 273, 427, 793, 1123, 1281, 2379, 3369, 5551, 7861, 14599, 16653, 23583, 43797, 68503, 102193, 205509, 306579, 479521, 890539, 1438563, 2671617, 6233773, 18701319]

約数ペア:

[(1, 18701319), (3, 6233773), (7, 2671617), (13, 1438563), (21, 890539), (39, 479521), (61, 306579), (91, 205509), (183, 102193), (273, 68503), (427, 43797), (793, 23583), (1123, 16653), (1281, 14599), (2379, 7861), (3369, 5551)]