19384515

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2121

約数の個数: 40

約数和(自身を含む): 36276768

約数和(自身を除く): 16892253

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2081, 3105, 6243, 9315, 10405, 18729, 31215, 47863, 56187, 93645, 143589, 168561, 239315, 280935, 430767, 717945, 842805, 1292301, 2153835, 3876903, 6461505, 19384515]

約数ペア:

[(1, 19384515), (3, 6461505), (5, 3876903), (9, 2153835), (15, 1292301), (23, 842805), (27, 717945), (45, 430767), (69, 280935), (81, 239315), (115, 168561), (135, 143589), (207, 93645), (345, 56187), (405, 47863), (621, 31215), (1035, 18729), (1863, 10405), (2081, 9315), (3105, 6243)]