18054981

素因数分解:

$3^4\times 7^2\times {\mathrm{4549}}^1$

素因数の和:4575

約数の個数: 30

約数和(自身を含む): 31381350

約数和(自身を除く): 13326369

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4549, 13647, 31843, 40941, 95529, 122823, 222901, 286587, 368469, 668703, 859761, 2006109, 2579283, 6018327, 18054981]

約数ペア:

[(1, 18054981), (3, 6018327), (7, 2579283), (9, 2006109), (21, 859761), (27, 668703), (49, 368469), (63, 286587), (81, 222901), (147, 122823), (189, 95529), (441, 40941), (567, 31843), (1323, 13647), (3969, 4549)]