21522123

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1319}}^1$

素因数の和:1376

約数の個数: 36

約数和(自身を含む): 37168560

約数和(自身を除く): 15646437

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1319, 1813, 2331, 3957, 5439, 9233, 11871, 16317, 27699, 48803, 64631, 83097, 146409, 193893, 341621, 439227, 581679, 1024863, 2391347, 3074589, 7174041, 21522123]

約数ペア:

[(1, 21522123), (3, 7174041), (7, 3074589), (9, 2391347), (21, 1024863), (37, 581679), (49, 439227), (63, 341621), (111, 193893), (147, 146409), (259, 83097), (333, 64631), (441, 48803), (777, 27699), (1319, 16317), (1813, 11871), (2331, 9233), (3957, 5439)]