19915704

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 58378320

約数和(自身を除く): 38462616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 53, 68, 72, 102, 106, 136, 153, 159, 204, 212, 306, 307, 318, 408, 424, 477, 612, 614, 636, 901, 921, 954, 1224, 1228, 1272, 1802, 1842, 1908, 2456, 2703, 2763, 3604, 3684, 3816, 5219, 5406, 5526, 7208, 7368, 8109, 10438, 10812, 11052, 15657, 16218, 16271, 20876, 21624, 22104, 31314, 32436, 32542, 41752, 46971, 48813, 62628, 64872, 65084, 93942, 97626, 125256, 130168, 146439, 187884, 195252, 276607, 292878, 375768, 390504, 553214, 585756, 829821, 1106428, 1171512, 1659642, 2212856, 2489463, 3319284, 4978926, 6638568, 9957852, 19915704]

約数ペア:

[(1, 19915704), (2, 9957852), (3, 6638568), (4, 4978926), (6, 3319284), (8, 2489463), (9, 2212856), (12, 1659642), (17, 1171512), (18, 1106428), (24, 829821), (34, 585756), (36, 553214), (51, 390504), (53, 375768), (68, 292878), (72, 276607), (102, 195252), (106, 187884), (136, 146439), (153, 130168), (159, 125256), (204, 97626), (212, 93942), (306, 65084), (307, 64872), (318, 62628), (408, 48813), (424, 46971), (477, 41752), (612, 32542), (614, 32436), (636, 31314), (901, 22104), (921, 21624), (954, 20876), (1224, 16271), (1228, 16218), (1272, 15657), (1802, 11052), (1842, 10812), (1908, 10438), (2456, 8109), (2703, 7368), (2763, 7208), (3604, 5526), (3684, 5406), (3816, 5219)]