645801842

素因数分解:

$2^1\times 7^1\times {\mathrm{1997}}^1\times {\mathrm{23099}}^1$

素因数の和:25105

約数の個数: 16

約数和(自身を含む): 1107691200

約数和(自身を除く): 461889358

約数列:

[1, 2, 7, 14, 1997, 3994, 13979, 23099, 27958, 46198, 161693, 323386, 46128703, 92257406, 322900921, 645801842]

約数ペア:

[(1, 645801842), (2, 322900921), (7, 92257406), (14, 46128703), (1997, 323386), (3994, 161693), (13979, 46198), (23099, 27958)]