21151998

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{167873}}^1$

素因数の和:167888

約数の個数: 24

約数和(自身を含む): 52376688

約数和(自身を除く): 31224690

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 167873, 335746, 503619, 1007238, 1175111, 1510857, 2350222, 3021714, 3525333, 7050666, 10575999, 21151998]

約数ペア:

[(1, 21151998), (2, 10575999), (3, 7050666), (6, 3525333), (7, 3021714), (9, 2350222), (14, 1510857), (18, 1175111), (21, 1007238), (42, 503619), (63, 335746), (126, 167873)]