199810881

素因数分解:

$3^7\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 301786240

約数和(自身を除く): 101975359

約数列:

[1, 3, 9, 27, 81, 211, 243, 433, 633, 729, 1299, 1899, 2187, 3897, 5697, 11691, 17091, 35073, 51273, 91363, 105219, 153819, 274089, 315657, 461457, 822267, 946971, 2466801, 7400403, 22201209, 66603627, 199810881]

約数ペア:

[(1, 199810881), (3, 66603627), (9, 22201209), (27, 7400403), (81, 2466801), (211, 946971), (243, 822267), (433, 461457), (633, 315657), (729, 274089), (1299, 153819), (1899, 105219), (2187, 91363), (3897, 51273), (5697, 35073), (11691, 17091)]