12212991

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{179}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 21945600

約数和(自身を除く): 9732609

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 179, 189, 361, 399, 513, 537, 1083, 1197, 1253, 1611, 2527, 3249, 3401, 3591, 3759, 4833, 7581, 9747, 10203, 11277, 22743, 23807, 30609, 33831, 64619, 68229, 71421, 91827, 193857, 214263, 452333, 581571, 642789, 1356999, 1744713, 4070997, 12212991]

約数ペア:

[(1, 12212991), (3, 4070997), (7, 1744713), (9, 1356999), (19, 642789), (21, 581571), (27, 452333), (57, 214263), (63, 193857), (133, 91827), (171, 71421), (179, 68229), (189, 64619), (361, 33831), (399, 30609), (513, 23807), (537, 22743), (1083, 11277), (1197, 10203), (1253, 9747), (1611, 7581), (2527, 4833), (3249, 3759), (3401, 3591)]