21619024

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^2$

素因数の和:192

約数の個数: 60

約数和(自身を含む): 49725984

約数和(自身を除く): 28106960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 67, 86, 112, 134, 172, 268, 301, 344, 469, 536, 602, 688, 938, 1072, 1204, 1876, 2408, 2881, 3752, 4489, 4816, 5762, 7504, 8978, 11524, 17956, 20167, 23048, 31423, 35912, 40334, 46096, 62846, 71824, 80668, 125692, 161336, 193027, 251384, 322672, 386054, 502768, 772108, 1351189, 1544216, 2702378, 3088432, 5404756, 10809512, 21619024]

約数ペア:

[(1, 21619024), (2, 10809512), (4, 5404756), (7, 3088432), (8, 2702378), (14, 1544216), (16, 1351189), (28, 772108), (43, 502768), (56, 386054), (67, 322672), (86, 251384), (112, 193027), (134, 161336), (172, 125692), (268, 80668), (301, 71824), (344, 62846), (469, 46096), (536, 40334), (602, 35912), (688, 31423), (938, 23048), (1072, 20167), (1204, 17956), (1876, 11524), (2408, 8978), (2881, 7504), (3752, 5762), (4489, 4816)]