28758191

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1835

約数の個数: 24

約数和(自身を含む): 38048640

約数和(自身を除く): 9290449

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1463, 1787, 2299, 12509, 16093, 19657, 33953, 137599, 216227, 237671, 373483, 1513589, 2614381, 4108313, 28758191]

約数ペア:

[(1, 28758191), (7, 4108313), (11, 2614381), (19, 1513589), (77, 373483), (121, 237671), (133, 216227), (209, 137599), (847, 33953), (1463, 19657), (1787, 16093), (2299, 12509)]