19962045

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2143}}^1$

素因数の和:2183

約数の個数: 40

約数和(自身を含む): 37357056

約数和(自身を除く): 17395011

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2143, 3105, 6429, 9315, 10715, 19287, 32145, 49289, 57861, 96435, 147867, 173583, 246445, 289305, 443601, 739335, 867915, 1330803, 2218005, 3992409, 6654015, 19962045]

約数ペア:

[(1, 19962045), (3, 6654015), (5, 3992409), (9, 2218005), (15, 1330803), (23, 867915), (27, 739335), (45, 443601), (69, 289305), (81, 246445), (115, 173583), (135, 147867), (207, 96435), (345, 57861), (405, 49289), (621, 32145), (1035, 19287), (1863, 10715), (2143, 9315), (3105, 6429)]