204909831

素因数分解:

$3^4\times 7^1\times {\mathrm{523}}^1\times {\mathrm{691}}^1$

素因数の和:1233

約数の個数: 40

約数和(自身を含む): 351004544

約数和(自身を除く): 146094713

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 523, 567, 691, 1569, 2073, 3661, 4707, 4837, 6219, 10983, 14121, 14511, 18657, 32949, 42363, 43533, 55971, 98847, 130599, 296541, 361393, 391797, 1084179, 2529751, 3252537, 7589253, 9757611, 22767759, 29272833, 68303277, 204909831]

約数ペア:

[(1, 204909831), (3, 68303277), (7, 29272833), (9, 22767759), (21, 9757611), (27, 7589253), (63, 3252537), (81, 2529751), (189, 1084179), (523, 391797), (567, 361393), (691, 296541), (1569, 130599), (2073, 98847), (3661, 55971), (4707, 43533), (4837, 42363), (6219, 32949), (10983, 18657), (14121, 14511)]