642791471

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{76079}}^1$

素因数の和:76174

約数の個数: 16

約数和(自身を含む): 788797440

約数和(自身を除く): 146005969

約数列:

[1, 7, 17, 71, 119, 497, 1207, 8449, 76079, 532553, 1293343, 5401609, 9053401, 37811263, 91827353, 642791471]

約数ペア:

[(1, 642791471), (7, 91827353), (17, 37811263), (71, 9053401), (119, 5401609), (497, 1293343), (1207, 532553), (8449, 76079)]