261555357

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{971}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 406093824

約数和(自身を除く): 144538467

約数列:

[1, 3, 7, 21, 101, 127, 303, 381, 707, 889, 971, 2121, 2667, 2913, 6797, 12827, 20391, 38481, 89789, 98071, 123317, 269367, 294213, 369951, 686497, 863219, 2059491, 2589657, 12455017, 37365051, 87185119, 261555357]

約数ペア:

[(1, 261555357), (3, 87185119), (7, 37365051), (21, 12455017), (101, 2589657), (127, 2059491), (303, 863219), (381, 686497), (707, 369951), (889, 294213), (971, 269367), (2121, 123317), (2667, 98071), (2913, 89789), (6797, 38481), (12827, 20391)]