21729105

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7207}}^1$

素因数の和:7285

約数の個数: 24

約数和(自身を含む): 38231232

約数和(自身を除く): 16502127

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 7207, 21621, 36035, 64863, 108105, 324315, 482869, 1448607, 2414345, 4345821, 7243035, 21729105]

約数ペア:

[(1, 21729105), (3, 7243035), (5, 4345821), (9, 2414345), (15, 1448607), (45, 482869), (67, 324315), (201, 108105), (335, 64863), (603, 36035), (1005, 21621), (3015, 7207)]