18993285

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2079

約数の個数: 40

約数和(自身を含む): 35544960

約数和(自身を除く): 16551675

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2039, 3105, 6117, 9315, 10195, 18351, 30585, 46897, 55053, 91755, 140691, 165159, 234485, 275265, 422073, 703455, 825795, 1266219, 2110365, 3798657, 6331095, 18993285]

約数ペア:

[(1, 18993285), (3, 6331095), (5, 3798657), (9, 2110365), (15, 1266219), (23, 825795), (27, 703455), (45, 422073), (69, 275265), (81, 234485), (115, 165159), (135, 140691), (207, 91755), (345, 55053), (405, 46897), (621, 30585), (1035, 18351), (1863, 10195), (2039, 9315), (3105, 6117)]