208595961

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{19139}}^1$

素因数の和:19325

約数の個数: 24

約数和(自身を含む): 346357440

約数和(自身を除く): 137761479

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 3633, 10899, 19139, 57417, 133973, 172251, 401919, 1205757, 3311047, 9933141, 23177329, 29799423, 69531987, 208595961]

約数ペア:

[(1, 208595961), (3, 69531987), (7, 29799423), (9, 23177329), (21, 9933141), (63, 3311047), (173, 1205757), (519, 401919), (1211, 172251), (1557, 133973), (3633, 57417), (10899, 19139)]