28475909

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2297}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 37723968

約数和(自身を除く): 9248059

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1771, 2297, 12397, 16079, 25267, 52831, 112553, 176869, 369817, 581141, 1238083, 2588719, 4067987, 28475909]

約数ペア:

[(1, 28475909), (7, 4067987), (11, 2588719), (23, 1238083), (49, 581141), (77, 369817), (161, 176869), (253, 112553), (539, 52831), (1127, 25267), (1771, 16079), (2297, 12397)]