15416919

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 27287040

約数和(自身を除く): 11870121

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 271, 301, 387, 441, 813, 903, 1161, 1323, 1897, 2107, 2439, 2709, 5691, 6321, 7317, 8127, 11653, 13279, 17073, 18963, 34959, 39837, 51219, 56889, 81571, 104877, 119511, 244713, 314631, 358533, 570997, 734139, 1712991, 2202417, 5138973, 15416919]

約数ペア:

[(1, 15416919), (3, 5138973), (7, 2202417), (9, 1712991), (21, 734139), (27, 570997), (43, 358533), (49, 314631), (63, 244713), (129, 119511), (147, 104877), (189, 81571), (271, 56889), (301, 51219), (387, 39837), (441, 34959), (813, 18963), (903, 17073), (1161, 13279), (1323, 11653), (1897, 8127), (2107, 7317), (2439, 6321), (2709, 5691)]