18828963

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 29090880

約数和(自身を除く): 10261917

約数列:

[1, 3, 9, 27, 41, 73, 123, 219, 233, 369, 657, 699, 1107, 1971, 2097, 2993, 6291, 8979, 9553, 17009, 26937, 28659, 51027, 80811, 85977, 153081, 257931, 459243, 697369, 2092107, 6276321, 18828963]

約数ペア:

[(1, 18828963), (3, 6276321), (9, 2092107), (27, 697369), (41, 459243), (73, 257931), (123, 153081), (219, 85977), (233, 80811), (369, 51027), (657, 28659), (699, 26937), (1107, 17009), (1971, 9553), (2097, 8979), (2993, 6291)]