20571345

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6823}}^1$

素因数の和:6901

約数の個数: 24

約数和(自身を含む): 36194496

約数和(自身を除く): 15623151

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 6823, 20469, 34115, 61407, 102345, 307035, 457141, 1371423, 2285705, 4114269, 6857115, 20571345]

約数ペア:

[(1, 20571345), (3, 6857115), (5, 4114269), (9, 2285705), (15, 1371423), (45, 457141), (67, 307035), (201, 102345), (335, 61407), (603, 34115), (1005, 20469), (3015, 6823)]