11971995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 24468480

約数和(自身を除く): 12496485

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 35, 51, 57, 85, 95, 105, 119, 133, 255, 285, 323, 353, 357, 399, 595, 665, 969, 1059, 1615, 1765, 1785, 1995, 2261, 2471, 4845, 5295, 6001, 6707, 6783, 7413, 11305, 12355, 18003, 20121, 30005, 33535, 33915, 37065, 42007, 46949, 90015, 100605, 114019, 126021, 140847, 210035, 234745, 342057, 570095, 630105, 704235, 798133, 1710285, 2394399, 3990665, 11971995]

約数ペア:

[(1, 11971995), (3, 3990665), (5, 2394399), (7, 1710285), (15, 798133), (17, 704235), (19, 630105), (21, 570095), (35, 342057), (51, 234745), (57, 210035), (85, 140847), (95, 126021), (105, 114019), (119, 100605), (133, 90015), (255, 46949), (285, 42007), (323, 37065), (353, 33915), (357, 33535), (399, 30005), (595, 20121), (665, 18003), (969, 12355), (1059, 11305), (1615, 7413), (1765, 6783), (1785, 6707), (1995, 6001), (2261, 5295), (2471, 4845)]