21778128

素因数分解:

$2^4\times 3^2\times {\mathrm{151237}}^1$

素因数の和:151251

約数の個数: 30

約数和(自身を含む): 60948914

約数和(自身を除く): 39170786

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 151237, 302474, 453711, 604948, 907422, 1209896, 1361133, 1814844, 2419792, 2722266, 3629688, 5444532, 7259376, 10889064, 21778128]

約数ペア:

[(1, 21778128), (2, 10889064), (3, 7259376), (4, 5444532), (6, 3629688), (8, 2722266), (9, 2419792), (12, 1814844), (16, 1361133), (18, 1209896), (24, 907422), (36, 604948), (48, 453711), (72, 302474), (144, 151237)]