18540711

素因数分解:

$3^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{373}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 31595520

約数和(自身を除く): 13054809

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 263, 373, 789, 1119, 1841, 2367, 2611, 3357, 5523, 7101, 7833, 10071, 16569, 23499, 49707, 70497, 98099, 294297, 686693, 882891, 2060079, 2648673, 6180237, 18540711]

約数ペア:

[(1, 18540711), (3, 6180237), (7, 2648673), (9, 2060079), (21, 882891), (27, 686693), (63, 294297), (189, 98099), (263, 70497), (373, 49707), (789, 23499), (1119, 16569), (1841, 10071), (2367, 7833), (2611, 7101), (3357, 5523)]