21139704

素因数分解:

$2^3\times 3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 66646800

約数和(自身を除く): 45507096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 19, 24, 27, 34, 36, 38, 51, 54, 57, 68, 72, 76, 81, 101, 102, 108, 114, 136, 152, 153, 162, 171, 202, 204, 216, 228, 303, 306, 323, 324, 342, 404, 408, 456, 459, 513, 606, 612, 646, 648, 684, 808, 909, 918, 969, 1026, 1212, 1224, 1292, 1368, 1377, 1539, 1717, 1818, 1836, 1919, 1938, 2052, 2424, 2584, 2727, 2754, 2907, 3078, 3434, 3636, 3672, 3838, 3876, 4104, 5151, 5454, 5508, 5757, 5814, 6156, 6868, 7272, 7676, 7752, 8181, 8721, 10302, 10908, 11016, 11514, 11628, 12312, 13736, 15352, 15453, 16362, 17271, 17442, 20604, 21816, 23028, 23256, 26163, 30906, 32623, 32724, 34542, 34884, 41208, 46056, 46359, 51813, 52326, 61812, 65246, 65448, 69084, 69768, 92718, 97869, 103626, 104652, 123624, 130492, 138168, 139077, 155439, 185436, 195738, 207252, 209304, 260984, 278154, 293607, 310878, 370872, 391476, 414504, 556308, 587214, 621756, 782952, 880821, 1112616, 1174428, 1243512, 1761642, 2348856, 2642463, 3523284, 5284926, 7046568, 10569852, 21139704]

約数ペア:

[(1, 21139704), (2, 10569852), (3, 7046568), (4, 5284926), (6, 3523284), (8, 2642463), (9, 2348856), (12, 1761642), (17, 1243512), (18, 1174428), (19, 1112616), (24, 880821), (27, 782952), (34, 621756), (36, 587214), (38, 556308), (51, 414504), (54, 391476), (57, 370872), (68, 310878), (72, 293607), (76, 278154), (81, 260984), (101, 209304), (102, 207252), (108, 195738), (114, 185436), (136, 155439), (152, 139077), (153, 138168), (162, 130492), (171, 123624), (202, 104652), (204, 103626), (216, 97869), (228, 92718), (303, 69768), (306, 69084), (323, 65448), (324, 65246), (342, 61812), (404, 52326), (408, 51813), (456, 46359), (459, 46056), (513, 41208), (606, 34884), (612, 34542), (646, 32724), (648, 32623), (684, 30906), (808, 26163), (909, 23256), (918, 23028), (969, 21816), (1026, 20604), (1212, 17442), (1224, 17271), (1292, 16362), (1368, 15453), (1377, 15352), (1539, 13736), (1717, 12312), (1818, 11628), (1836, 11514), (1919, 11016), (1938, 10908), (2052, 10302), (2424, 8721), (2584, 8181), (2727, 7752), (2754, 7676), (2907, 7272), (3078, 6868), (3434, 6156), (3636, 5814), (3672, 5757), (3838, 5508), (3876, 5454), (4104, 5151)]