19054971

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 31676736

約数和(自身を除く): 12621765

約数列:

[1, 3, 9, 13, 23, 39, 69, 73, 97, 117, 207, 219, 291, 299, 657, 873, 897, 949, 1261, 1679, 2231, 2691, 2847, 3783, 5037, 6693, 7081, 8541, 11349, 15111, 20079, 21243, 21827, 29003, 63729, 65481, 87009, 92053, 162863, 196443, 261027, 276159, 488589, 828477, 1465767, 2117219, 6351657, 19054971]

約数ペア:

[(1, 19054971), (3, 6351657), (9, 2117219), (13, 1465767), (23, 828477), (39, 488589), (69, 276159), (73, 261027), (97, 196443), (117, 162863), (207, 92053), (219, 87009), (291, 65481), (299, 63729), (657, 29003), (873, 21827), (897, 21243), (949, 20079), (1261, 15111), (1679, 11349), (2231, 8541), (2691, 7081), (2847, 6693), (3783, 5037)]