2981979

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 5800704

約数和(自身を除く): 2818725

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 331, 429, 693, 819, 993, 1001, 1287, 2317, 2979, 3003, 3641, 4303, 6951, 9009, 10923, 12909, 20853, 25487, 30121, 32769, 38727, 47333, 76461, 90363, 141999, 229383, 271089, 331331, 425997, 993993, 2981979]

約数ペア:

[(1, 2981979), (3, 993993), (7, 425997), (9, 331331), (11, 271089), (13, 229383), (21, 141999), (33, 90363), (39, 76461), (63, 47333), (77, 38727), (91, 32769), (99, 30121), (117, 25487), (143, 20853), (231, 12909), (273, 10923), (331, 9009), (429, 6951), (693, 4303), (819, 3641), (993, 3003), (1001, 2979), (1287, 2317)]