21230612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{733}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 40138056

約数和(自身を除く): 18907444

約数列:

[1, 2, 4, 13, 26, 52, 557, 733, 1114, 1466, 2228, 2932, 7241, 9529, 14482, 19058, 28964, 38116, 408281, 816562, 1633124, 5307653, 10615306, 21230612]

約数ペア:

[(1, 21230612), (2, 10615306), (4, 5307653), (13, 1633124), (26, 816562), (52, 408281), (557, 38116), (733, 28964), (1114, 19058), (1466, 14482), (2228, 9529), (2932, 7241)]