19708815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8161}}^1$

素因数の和:8199

約数の個数: 32

約数和(自身を含む): 37610496

約数和(自身を除く): 17901681

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8161, 24483, 40805, 57127, 122415, 171381, 187703, 285635, 563109, 856905, 938515, 1313921, 2815545, 3941763, 6569605, 19708815]

約数ペア:

[(1, 19708815), (3, 6569605), (5, 3941763), (7, 2815545), (15, 1313921), (21, 938515), (23, 856905), (35, 563109), (69, 285635), (105, 187703), (115, 171381), (161, 122415), (345, 57127), (483, 40805), (805, 24483), (2415, 8161)]