19947555

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19273}}^1$

素因数の和:19307

約数の個数: 24

約数和(自身を含む): 36080928

約数和(自身を除く): 16133373

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19273, 57819, 96365, 173457, 289095, 443279, 867285, 1329837, 2216395, 3989511, 6649185, 19947555]

約数ペア:

[(1, 19947555), (3, 6649185), (5, 3989511), (9, 2216395), (15, 1329837), (23, 867285), (45, 443279), (69, 289095), (115, 173457), (207, 96365), (345, 57819), (1035, 19273)]