21335590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73571}}^1$

素因数の和:73607

約数の個数: 16

約数和(自身を含む): 39728880

約数和(自身を除く): 18393290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73571, 147142, 367855, 735710, 2133559, 4267118, 10667795, 21335590]

約数ペア:

[(1, 21335590), (2, 10667795), (5, 4267118), (10, 2133559), (29, 735710), (58, 367855), (145, 147142), (290, 73571)]