218984877

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{40351}}^1$

素因数の和:40430

約数の個数: 20

約数和(自身を含む): 332016256

約数和(自身を除く): 113031379

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 40351, 121053, 363159, 1089477, 2703517, 3268431, 8110551, 24331653, 72994959, 218984877]

約数ペア:

[(1, 218984877), (3, 72994959), (9, 24331653), (27, 8110551), (67, 3268431), (81, 2703517), (201, 1089477), (603, 363159), (1809, 121053), (5427, 40351)]