201518331

素因数分解:

$3^1\times 7^4\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 317700624

約数和(自身を除く): 116182293

約数列:

[1, 3, 7, 21, 49, 101, 147, 277, 303, 343, 707, 831, 1029, 1939, 2121, 2401, 4949, 5817, 7203, 13573, 14847, 27977, 34643, 40719, 83931, 95011, 103929, 195839, 242501, 285033, 587517, 665077, 727503, 1370873, 1995231, 4112619, 9596111, 28788333, 67172777, 201518331]

約数ペア:

[(1, 201518331), (3, 67172777), (7, 28788333), (21, 9596111), (49, 4112619), (101, 1995231), (147, 1370873), (277, 727503), (303, 665077), (343, 587517), (707, 285033), (831, 242501), (1029, 195839), (1939, 103929), (2121, 95011), (2401, 83931), (4949, 40719), (5817, 34643), (7203, 27977), (13573, 14847)]