21437253

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 31923008

約数和(自身を除く): 10485755

約数列:

[1, 3, 9, 67, 73, 201, 219, 487, 603, 657, 1461, 4383, 4891, 14673, 32629, 35551, 44019, 97887, 106653, 293661, 319959, 2381917, 7145751, 21437253]

約数ペア:

[(1, 21437253), (3, 7145751), (9, 2381917), (67, 319959), (73, 293661), (201, 106653), (219, 97887), (487, 44019), (603, 35551), (657, 32629), (1461, 14673), (4383, 4891)]