212751

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 384384

約数和(自身を除く): 171633

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 307, 693, 921, 2149, 2763, 3377, 6447, 10131, 19341, 23639, 30393, 70917, 212751]

約数ペア:

[(1, 212751), (3, 70917), (7, 30393), (9, 23639), (11, 19341), (21, 10131), (33, 6447), (63, 3377), (77, 2763), (99, 2149), (231, 921), (307, 693)]