15815709

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 29729280

約数和(自身を除く): 13913571

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 41, 63, 91, 117, 123, 157, 189, 273, 287, 351, 369, 471, 533, 819, 861, 1099, 1107, 1413, 1599, 2041, 2457, 2583, 3297, 3731, 4239, 4797, 6123, 6437, 7749, 9891, 11193, 14287, 14391, 18369, 19311, 29673, 33579, 42861, 45059, 55107, 57933, 83681, 100737, 128583, 135177, 173799, 251043, 385749, 405531, 585767, 753129, 1216593, 1757301, 2259387, 5271903, 15815709]

約数ペア:

[(1, 15815709), (3, 5271903), (7, 2259387), (9, 1757301), (13, 1216593), (21, 753129), (27, 585767), (39, 405531), (41, 385749), (63, 251043), (91, 173799), (117, 135177), (123, 128583), (157, 100737), (189, 83681), (273, 57933), (287, 55107), (351, 45059), (369, 42861), (471, 33579), (533, 29673), (819, 19311), (861, 18369), (1099, 14391), (1107, 14287), (1413, 11193), (1599, 9891), (2041, 7749), (2457, 6437), (2583, 6123), (3297, 4797), (3731, 4239)]