21857648

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 60

約数和(自身を含む): 46823640

約数和(自身を除く): 24965992

約数列:

[1, 2, 4, 8, 16, 17, 29, 34, 58, 68, 116, 136, 163, 232, 272, 289, 326, 464, 493, 578, 652, 986, 1156, 1304, 1972, 2312, 2608, 2771, 3944, 4624, 4727, 5542, 7888, 8381, 9454, 11084, 16762, 18908, 22168, 33524, 37816, 44336, 47107, 67048, 75632, 80359, 94214, 134096, 160718, 188428, 321436, 376856, 642872, 753712, 1285744, 1366103, 2732206, 5464412, 10928824, 21857648]

約数ペア:

[(1, 21857648), (2, 10928824), (4, 5464412), (8, 2732206), (16, 1366103), (17, 1285744), (29, 753712), (34, 642872), (58, 376856), (68, 321436), (116, 188428), (136, 160718), (163, 134096), (232, 94214), (272, 80359), (289, 75632), (326, 67048), (464, 47107), (493, 44336), (578, 37816), (652, 33524), (986, 22168), (1156, 18908), (1304, 16762), (1972, 11084), (2312, 9454), (2608, 8381), (2771, 7888), (3944, 5542), (4624, 4727)]