21949520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9461}}^1$

素因数の和:9503

約数の個数: 40

約数和(自身を含む): 52797960

約数和(自身を除く): 30848440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9461, 18922, 37844, 47305, 75688, 94610, 151376, 189220, 274369, 378440, 548738, 756880, 1097476, 1371845, 2194952, 2743690, 4389904, 5487380, 10974760, 21949520]

約数ペア:

[(1, 21949520), (2, 10974760), (4, 5487380), (5, 4389904), (8, 2743690), (10, 2194952), (16, 1371845), (20, 1097476), (29, 756880), (40, 548738), (58, 378440), (80, 274369), (116, 189220), (145, 151376), (232, 94610), (290, 75688), (464, 47305), (580, 37844), (1160, 18922), (2320, 9461)]