21390474

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509297}}^1$

素因数の和:509309

約数の個数: 16

約数和(自身を含む): 48892608

約数和(自身を除く): 27502134

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509297, 1018594, 1527891, 3055782, 3565079, 7130158, 10695237, 21390474]

約数ペア:

[(1, 21390474), (2, 10695237), (3, 7130158), (6, 3565079), (7, 3055782), (14, 1527891), (21, 1018594), (42, 509297)]