18019221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1297}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 26292288

約数和(自身を除く): 8273067

約数列:

[1, 3, 11, 33, 421, 1263, 1297, 3891, 4631, 13893, 14267, 42801, 546037, 1638111, 6006407, 18019221]

約数ペア:

[(1, 18019221), (3, 6006407), (11, 1638111), (33, 546037), (421, 42801), (1263, 14267), (1297, 13893), (3891, 4631)]