21272768

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 84

約数和(自身を含む): 48240696

約数和(自身を除く): 26967928

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 67, 82, 88, 121, 134, 164, 176, 242, 268, 328, 352, 451, 484, 536, 656, 704, 737, 902, 968, 1072, 1312, 1474, 1804, 1936, 2144, 2624, 2747, 2948, 3608, 3872, 4288, 4961, 5494, 5896, 7216, 7744, 8107, 9922, 10988, 11792, 14432, 16214, 19844, 21976, 23584, 28864, 30217, 32428, 39688, 43952, 47168, 60434, 64856, 79376, 87904, 120868, 129712, 158752, 175808, 241736, 259424, 317504, 332387, 483472, 518848, 664774, 966944, 1329548, 1933888, 2659096, 5318192, 10636384, 21272768]

約数ペア:

[(1, 21272768), (2, 10636384), (4, 5318192), (8, 2659096), (11, 1933888), (16, 1329548), (22, 966944), (32, 664774), (41, 518848), (44, 483472), (64, 332387), (67, 317504), (82, 259424), (88, 241736), (121, 175808), (134, 158752), (164, 129712), (176, 120868), (242, 87904), (268, 79376), (328, 64856), (352, 60434), (451, 47168), (484, 43952), (536, 39688), (656, 32428), (704, 30217), (737, 28864), (902, 23584), (968, 21976), (1072, 19844), (1312, 16214), (1474, 14432), (1804, 11792), (1936, 10988), (2144, 9922), (2624, 8107), (2747, 7744), (2948, 7216), (3608, 5896), (3872, 5494), (4288, 4961)]