311488281

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{3299}}^1$

素因数の和:3590

約数の個数: 32

約数和(自身を含む): 498960000

約数和(自身を除く): 187471719

約数列:

[1, 3, 9, 13, 27, 39, 117, 269, 351, 807, 2421, 3299, 3497, 7263, 9897, 10491, 29691, 31473, 42887, 89073, 94419, 128661, 385983, 887431, 1157949, 2662293, 7986879, 11536603, 23960637, 34609809, 103829427, 311488281]

約数ペア:

[(1, 311488281), (3, 103829427), (9, 34609809), (13, 23960637), (27, 11536603), (39, 7986879), (117, 2662293), (269, 1157949), (351, 887431), (807, 385983), (2421, 128661), (3299, 94419), (3497, 89073), (7263, 42887), (9897, 31473), (10491, 29691)]