19943415

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2141}}^1$

素因数の和:2181

約数の個数: 40

約数和(自身を含む): 37322208

約数和(自身を除く): 17378793

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2141, 3105, 6423, 9315, 10705, 19269, 32115, 49243, 57807, 96345, 147729, 173421, 246215, 289035, 443187, 738645, 867105, 1329561, 2215935, 3988683, 6647805, 19943415]

約数ペア:

[(1, 19943415), (3, 6647805), (5, 3988683), (9, 2215935), (15, 1329561), (23, 867105), (27, 738645), (45, 443187), (69, 289035), (81, 246215), (115, 173421), (135, 147729), (207, 96345), (345, 57807), (405, 49243), (621, 32115), (1035, 19269), (1863, 10705), (2141, 9315), (3105, 6423)]