21089992

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 51628320

約数和(自身を除く): 30538328

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 67, 73, 77, 88, 98, 134, 146, 154, 196, 268, 292, 308, 392, 469, 511, 536, 539, 584, 616, 737, 803, 938, 1022, 1078, 1474, 1606, 1876, 2044, 2156, 2948, 3212, 3283, 3577, 3752, 4088, 4312, 4891, 5159, 5621, 5896, 6424, 6566, 7154, 9782, 10318, 11242, 13132, 14308, 19564, 20636, 22484, 26264, 28616, 34237, 36113, 39128, 39347, 41272, 44968, 53801, 68474, 72226, 78694, 107602, 136948, 144452, 157388, 215204, 239659, 273896, 288904, 314776, 376607, 430408, 479318, 753214, 958636, 1506428, 1917272, 2636249, 3012856, 5272498, 10544996, 21089992]

約数ペア:

[(1, 21089992), (2, 10544996), (4, 5272498), (7, 3012856), (8, 2636249), (11, 1917272), (14, 1506428), (22, 958636), (28, 753214), (44, 479318), (49, 430408), (56, 376607), (67, 314776), (73, 288904), (77, 273896), (88, 239659), (98, 215204), (134, 157388), (146, 144452), (154, 136948), (196, 107602), (268, 78694), (292, 72226), (308, 68474), (392, 53801), (469, 44968), (511, 41272), (536, 39347), (539, 39128), (584, 36113), (616, 34237), (737, 28616), (803, 26264), (938, 22484), (1022, 20636), (1078, 19564), (1474, 14308), (1606, 13132), (1876, 11242), (2044, 10318), (2156, 9782), (2948, 7154), (3212, 6566), (3283, 6424), (3577, 5896), (3752, 5621), (4088, 5159), (4312, 4891)]