12809979

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15641}}^1$

素因数の和:15667

約数の個数: 24

約数和(自身を含む): 22774752

約数和(自身を除く): 9964773

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 15641, 46923, 109487, 140769, 203333, 328461, 609999, 985383, 1423331, 1829997, 4269993, 12809979]

約数ペア:

[(1, 12809979), (3, 4269993), (7, 1829997), (9, 1423331), (13, 985383), (21, 609999), (39, 328461), (63, 203333), (91, 140769), (117, 109487), (273, 46923), (819, 15641)]