21331982

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3917}}^1$

素因数の和:4315

約数の個数: 16

約数和(自身を含む): 36672480

約数和(自身を除く): 15340498

約数列:

[1, 2, 7, 14, 389, 778, 2723, 3917, 5446, 7834, 27419, 54838, 1523713, 3047426, 10665991, 21331982]

約数ペア:

[(1, 21331982), (2, 10665991), (7, 3047426), (14, 1523713), (389, 54838), (778, 27419), (2723, 7834), (3917, 5446)]