16230921

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2141}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 26115264

約数和(自身を除く): 9884343

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2141, 2527, 6423, 7581, 14987, 40679, 44961, 122037, 284753, 772901, 854259, 2318703, 5410307, 16230921]

約数ペア:

[(1, 16230921), (3, 5410307), (7, 2318703), (19, 854259), (21, 772901), (57, 284753), (133, 122037), (361, 44961), (399, 40679), (1083, 14987), (2141, 7581), (2527, 6423)]