21716784

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 43279056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 79, 83, 92, 138, 144, 158, 166, 184, 207, 237, 249, 276, 316, 332, 368, 414, 474, 498, 552, 632, 664, 711, 747, 828, 948, 996, 1104, 1264, 1328, 1422, 1494, 1656, 1817, 1896, 1909, 1992, 2844, 2988, 3312, 3634, 3792, 3818, 3984, 5451, 5688, 5727, 5976, 6557, 7268, 7636, 10902, 11376, 11454, 11952, 13114, 14536, 15272, 16353, 17181, 19671, 21804, 22908, 26228, 29072, 30544, 32706, 34362, 39342, 43608, 45816, 52456, 59013, 65412, 68724, 78684, 87216, 91632, 104912, 118026, 130824, 137448, 150811, 157368, 236052, 261648, 274896, 301622, 314736, 452433, 472104, 603244, 904866, 944208, 1206488, 1357299, 1809732, 2412976, 2714598, 3619464, 5429196, 7238928, 10858392, 21716784]

約数ペア:

[(1, 21716784), (2, 10858392), (3, 7238928), (4, 5429196), (6, 3619464), (8, 2714598), (9, 2412976), (12, 1809732), (16, 1357299), (18, 1206488), (23, 944208), (24, 904866), (36, 603244), (46, 472104), (48, 452433), (69, 314736), (72, 301622), (79, 274896), (83, 261648), (92, 236052), (138, 157368), (144, 150811), (158, 137448), (166, 130824), (184, 118026), (207, 104912), (237, 91632), (249, 87216), (276, 78684), (316, 68724), (332, 65412), (368, 59013), (414, 52456), (474, 45816), (498, 43608), (552, 39342), (632, 34362), (664, 32706), (711, 30544), (747, 29072), (828, 26228), (948, 22908), (996, 21804), (1104, 19671), (1264, 17181), (1328, 16353), (1422, 15272), (1494, 14536), (1656, 13114), (1817, 11952), (1896, 11454), (1909, 11376), (1992, 10902), (2844, 7636), (2988, 7268), (3312, 6557), (3634, 5976), (3792, 5727), (3818, 5688), (3984, 5451)]