21076510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 31178210

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 23, 26, 35, 38, 46, 53, 65, 70, 91, 95, 106, 115, 130, 133, 161, 182, 190, 230, 247, 265, 266, 299, 322, 371, 437, 455, 494, 530, 598, 665, 689, 742, 805, 874, 910, 1007, 1219, 1235, 1330, 1378, 1495, 1610, 1729, 1855, 2014, 2093, 2185, 2438, 2470, 2990, 3059, 3445, 3458, 3710, 4186, 4370, 4823, 5035, 5681, 6095, 6118, 6890, 7049, 8533, 8645, 9646, 10070, 10465, 11362, 12190, 13091, 14098, 15295, 15847, 17066, 17290, 20930, 23161, 24115, 26182, 28405, 30590, 31694, 35245, 39767, 42665, 46322, 48230, 56810, 65455, 70490, 79235, 79534, 85330, 91637, 110929, 115805, 130910, 158470, 162127, 183274, 198835, 221858, 231610, 301093, 324254, 397670, 458185, 554645, 602186, 810635, 916370, 1109290, 1505465, 1621270, 2107651, 3010930, 4215302, 10538255, 21076510]

約数ペア:

[(1, 21076510), (2, 10538255), (5, 4215302), (7, 3010930), (10, 2107651), (13, 1621270), (14, 1505465), (19, 1109290), (23, 916370), (26, 810635), (35, 602186), (38, 554645), (46, 458185), (53, 397670), (65, 324254), (70, 301093), (91, 231610), (95, 221858), (106, 198835), (115, 183274), (130, 162127), (133, 158470), (161, 130910), (182, 115805), (190, 110929), (230, 91637), (247, 85330), (265, 79534), (266, 79235), (299, 70490), (322, 65455), (371, 56810), (437, 48230), (455, 46322), (494, 42665), (530, 39767), (598, 35245), (665, 31694), (689, 30590), (742, 28405), (805, 26182), (874, 24115), (910, 23161), (1007, 20930), (1219, 17290), (1235, 17066), (1330, 15847), (1378, 15295), (1495, 14098), (1610, 13091), (1729, 12190), (1855, 11362), (2014, 10465), (2093, 10070), (2185, 9646), (2438, 8645), (2470, 8533), (2990, 7049), (3059, 6890), (3445, 6118), (3458, 6095), (3710, 5681), (4186, 5035), (4370, 4823)]