218640765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{31079}}^1$

素因数の和:31161

約数の個数: 32

約数和(自身を含む): 405780480

約数和(自身を除く): 187139715

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 7035, 31079, 93237, 155395, 217553, 466185, 652659, 1087765, 2082293, 3263295, 6246879, 10411465, 14576051, 31234395, 43728153, 72880255, 218640765]

約数ペア:

[(1, 218640765), (3, 72880255), (5, 43728153), (7, 31234395), (15, 14576051), (21, 10411465), (35, 6246879), (67, 3263295), (105, 2082293), (201, 1087765), (335, 652659), (469, 466185), (1005, 217553), (1407, 155395), (2345, 93237), (7035, 31079)]