19967656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3581}}^1$

素因数の和:3645

約数の個数: 32

約数和(自身を含む): 40619880

約数和(自身を除く): 20652224

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3581, 5576, 7162, 14324, 28648, 60877, 121754, 146821, 243508, 293642, 487016, 587284, 1174568, 2495957, 4991914, 9983828, 19967656]

約数ペア:

[(1, 19967656), (2, 9983828), (4, 4991914), (8, 2495957), (17, 1174568), (34, 587284), (41, 487016), (68, 293642), (82, 243508), (136, 146821), (164, 121754), (328, 60877), (697, 28648), (1394, 14324), (2788, 7162), (3581, 5576)]