15971571

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 30301440

約数和(自身を除く): 14329869

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1213, 1463, 1881, 3639, 4389, 8491, 10917, 13167, 13343, 23047, 25473, 40029, 69141, 76419, 93401, 120087, 161329, 207423, 253517, 280203, 483987, 760551, 840609, 1451961, 1774619, 2281653, 5323857, 15971571]

約数ペア:

[(1, 15971571), (3, 5323857), (7, 2281653), (9, 1774619), (11, 1451961), (19, 840609), (21, 760551), (33, 483987), (57, 280203), (63, 253517), (77, 207423), (99, 161329), (133, 120087), (171, 93401), (209, 76419), (231, 69141), (399, 40029), (627, 25473), (693, 23047), (1197, 13343), (1213, 13167), (1463, 10917), (1881, 8491), (3639, 4389)]