21699040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12329}}^1$

素因数の和:12355

約数の個数: 48

約数和(自身を含む): 55928880

約数和(自身を除く): 34229840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12329, 24658, 49316, 61645, 98632, 123290, 135619, 197264, 246580, 271238, 394528, 493160, 542476, 678095, 986320, 1084952, 1356190, 1972640, 2169904, 2712380, 4339808, 5424760, 10849520, 21699040]

約数ペア:

[(1, 21699040), (2, 10849520), (4, 5424760), (5, 4339808), (8, 2712380), (10, 2169904), (11, 1972640), (16, 1356190), (20, 1084952), (22, 986320), (32, 678095), (40, 542476), (44, 493160), (55, 394528), (80, 271238), (88, 246580), (110, 197264), (160, 135619), (176, 123290), (220, 98632), (352, 61645), (440, 49316), (880, 24658), (1760, 12329)]