13921215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{709}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 29445120

約数和(自身を除く): 15523905

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 709, 935, 1155, 1309, 1785, 2127, 2805, 3545, 3927, 4963, 6545, 7799, 10635, 12053, 14889, 19635, 23397, 24815, 36159, 38995, 54593, 60265, 74445, 84371, 116985, 132583, 163779, 180795, 253113, 272965, 397749, 421855, 662915, 818895, 928081, 1265565, 1988745, 2784243, 4640405, 13921215]

約数ペア:

[(1, 13921215), (3, 4640405), (5, 2784243), (7, 1988745), (11, 1265565), (15, 928081), (17, 818895), (21, 662915), (33, 421855), (35, 397749), (51, 272965), (55, 253113), (77, 180795), (85, 163779), (105, 132583), (119, 116985), (165, 84371), (187, 74445), (231, 60265), (255, 54593), (357, 38995), (385, 36159), (561, 24815), (595, 23397), (709, 19635), (935, 14889), (1155, 12053), (1309, 10635), (1785, 7799), (2127, 6545), (2805, 4963), (3545, 3927)]