21435428

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{10487}}^1$

素因数の和:10571

約数の個数: 24

約数和(自身を含む): 43462272

約数和(自身を除く): 22026844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 10487, 20974, 41948, 73409, 146818, 293636, 765551, 1531102, 3062204, 5358857, 10717714, 21435428]

約数ペア:

[(1, 21435428), (2, 10717714), (4, 5358857), (7, 3062204), (14, 1531102), (28, 765551), (73, 293636), (146, 146818), (292, 73409), (511, 41948), (1022, 20974), (2044, 10487)]