19696749

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 29122560

約数和(自身を除く): 9425811

約数列:

[1, 3, 19, 31, 57, 71, 93, 157, 213, 471, 589, 1349, 1767, 2201, 2983, 4047, 4867, 6603, 8949, 11147, 14601, 33441, 41819, 92473, 125457, 211793, 277419, 345557, 635379, 1036671, 6565583, 19696749]

約数ペア:

[(1, 19696749), (3, 6565583), (19, 1036671), (31, 635379), (57, 345557), (71, 277419), (93, 211793), (157, 125457), (213, 92473), (471, 41819), (589, 33441), (1349, 14601), (1767, 11147), (2201, 8949), (2983, 6603), (4047, 4867)]