21406084

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40237}}^1$

素因数の和:40267

約数の個数: 24

約数和(自身を含む): 45066560

約数和(自身を除く): 23660476

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40237, 80474, 160948, 281659, 563318, 764503, 1126636, 1529006, 3058012, 5351521, 10703042, 21406084]

約数ペア:

[(1, 21406084), (2, 10703042), (4, 5351521), (7, 3058012), (14, 1529006), (19, 1126636), (28, 764503), (38, 563318), (76, 281659), (133, 160948), (266, 80474), (532, 40237)]