20746719

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3588

約数の個数: 32

約数和(自身を含む): 36270080

約数和(自身を除く): 15523361

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3541, 5859, 10623, 24787, 31869, 74361, 95607, 109771, 223083, 329313, 669249, 768397, 987939, 2305191, 2963817, 6915573, 20746719]

約数ペア:

[(1, 20746719), (3, 6915573), (7, 2963817), (9, 2305191), (21, 987939), (27, 768397), (31, 669249), (63, 329313), (93, 223083), (189, 109771), (217, 95607), (279, 74361), (651, 31869), (837, 24787), (1953, 10623), (3541, 5859)]