21282318267

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27390371}}^1$

素因数の和:27390418

約数の個数: 16

約数和(自身を含む): 33306692352

約数和(自身を除く): 12024374085

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27390371, 82171113, 191732597, 575197791, 1013443727, 3040331181, 7094106089, 21282318267]

約数ペア:

[(1, 21282318267), (3, 7094106089), (7, 3040331181), (21, 1013443727), (37, 575197791), (111, 191732597), (259, 82171113), (777, 27390371)]