21885656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1657}}^1$

素因数の和:1803

約数の個数: 32

約数和(自身を含む): 44567040

約数和(自身を除く): 22681384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 1657, 3302, 3314, 6604, 6628, 13208, 13256, 21541, 43082, 86164, 172328, 210439, 420878, 841756, 1683512, 2735707, 5471414, 10942828, 21885656]

約数ペア:

[(1, 21885656), (2, 10942828), (4, 5471414), (8, 2735707), (13, 1683512), (26, 841756), (52, 420878), (104, 210439), (127, 172328), (254, 86164), (508, 43082), (1016, 21541), (1651, 13256), (1657, 13208), (3302, 6628), (3314, 6604)]