21717668

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20963}}^1$

素因数の和:21011

約数の個数: 24

約数和(自身を含む): 44611392

約数和(自身を除く): 22893724

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20963, 41926, 83852, 146741, 293482, 586964, 775631, 1551262, 3102524, 5429417, 10858834, 21717668]

約数ペア:

[(1, 21717668), (2, 10858834), (4, 5429417), (7, 3102524), (14, 1551262), (28, 775631), (37, 586964), (74, 293482), (148, 146741), (259, 83852), (518, 41926), (1036, 20963)]