71315531

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 90624000

約数和(自身を除く): 19308469

約数列:

[1, 7, 19, 31, 49, 133, 217, 343, 353, 589, 931, 1519, 2471, 4123, 6517, 6707, 10633, 10943, 17297, 28861, 46949, 76601, 121079, 202027, 207917, 328643, 536207, 1455419, 2300501, 3753449, 10187933, 71315531]

約数ペア:

[(1, 71315531), (7, 10187933), (19, 3753449), (31, 2300501), (49, 1455419), (133, 536207), (217, 328643), (343, 207917), (353, 202027), (589, 121079), (931, 76601), (1519, 46949), (2471, 28861), (4123, 17297), (6517, 10943), (6707, 10633)]