51906491

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 71150400

約数和(自身を除く): 19243909

約数列:

[1, 7, 13, 17, 29, 89, 91, 119, 169, 203, 221, 377, 493, 623, 1157, 1183, 1513, 1547, 2581, 2639, 2873, 3451, 4901, 6409, 8099, 10591, 15041, 18067, 19669, 20111, 33553, 34307, 43877, 44863, 83317, 105287, 137683, 234871, 255697, 307139, 436189, 570401, 583219, 1789879, 3053323, 3992807, 7415213, 51906491]

約数ペア:

[(1, 51906491), (7, 7415213), (13, 3992807), (17, 3053323), (29, 1789879), (89, 583219), (91, 570401), (119, 436189), (169, 307139), (203, 255697), (221, 234871), (377, 137683), (493, 105287), (623, 83317), (1157, 44863), (1183, 43877), (1513, 34307), (1547, 33553), (2581, 20111), (2639, 19669), (2873, 18067), (3451, 15041), (4901, 10591), (6409, 8099)]