19872268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1487}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 37622592

約数和(自身を除く): 17750324

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 1487, 2974, 3341, 5948, 6682, 13364, 19331, 38662, 77324, 382159, 764318, 1528636, 4968067, 9936134, 19872268]

約数ペア:

[(1, 19872268), (2, 9936134), (4, 4968067), (13, 1528636), (26, 764318), (52, 382159), (257, 77324), (514, 38662), (1028, 19331), (1487, 13364), (2974, 6682), (3341, 5948)]