208029213

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{19087}}^1$

素因数の和:19273

約数の個数: 24

約数和(自身を含む): 345416448

約数和(自身を除く): 137387235

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 3633, 10899, 19087, 57261, 133609, 171783, 400827, 1202481, 3302051, 9906153, 23114357, 29718459, 69343071, 208029213]

約数ペア:

[(1, 208029213), (3, 69343071), (7, 29718459), (9, 23114357), (21, 9906153), (63, 3302051), (173, 1202481), (519, 400827), (1211, 171783), (1557, 133609), (3633, 57261), (10899, 19087)]