21536878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 37988352

約数和(自身を除く): 16451474

約数列:

[1, 2, 11, 22, 23, 31, 46, 62, 253, 341, 506, 682, 713, 1373, 1426, 2746, 7843, 15103, 15686, 30206, 31579, 42563, 63158, 85126, 347369, 468193, 694738, 936386, 978949, 1957898, 10768439, 21536878]

約数ペア:

[(1, 21536878), (2, 10768439), (11, 1957898), (22, 978949), (23, 936386), (31, 694738), (46, 468193), (62, 347369), (253, 85126), (341, 63158), (506, 42563), (682, 31579), (713, 30206), (1373, 15686), (1426, 15103), (2746, 7843)]