207399771

素因数分解:

$3^9\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 40

約数和(自身を含む): 319922064

約数和(自身を除く): 112522293

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 257, 369, 729, 771, 1107, 2187, 2313, 3321, 6561, 6939, 9963, 10537, 19683, 20817, 29889, 31611, 62451, 89667, 94833, 187353, 269001, 284499, 562059, 807003, 853497, 1686177, 2560491, 5058531, 7681473, 23044419, 69133257, 207399771]

約数ペア:

[(1, 207399771), (3, 69133257), (9, 23044419), (27, 7681473), (41, 5058531), (81, 2560491), (123, 1686177), (243, 853497), (257, 807003), (369, 562059), (729, 284499), (771, 269001), (1107, 187353), (2187, 94833), (2313, 89667), (3321, 62451), (6561, 31611), (6939, 29889), (9963, 20817), (10537, 19683)]