20881569267

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{423931}}^1$

素因数の和:424371

約数の個数: 24

約数和(自身を含む): 32559673328

約数和(自身を除く): 11678104061

約数列:

[1, 3, 9, 13, 39, 117, 421, 1263, 3789, 5473, 16419, 49257, 423931, 1271793, 3815379, 5511103, 16533309, 49599927, 178474951, 535424853, 1606274559, 2320174363, 6960523089, 20881569267]

約数ペア:

[(1, 20881569267), (3, 6960523089), (9, 2320174363), (13, 1606274559), (39, 535424853), (117, 178474951), (421, 49599927), (1263, 16533309), (3789, 5511103), (5473, 3815379), (16419, 1271793), (49257, 423931)]