28421701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19427}}^1$

素因数の和:19464

約数の個数: 16

約数和(自身を含む): 37301760

約数和(自身を除く): 8880059

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19427, 135989, 213697, 369113, 1495879, 2583791, 4060243, 28421701]

約数ペア:

[(1, 28421701), (7, 4060243), (11, 2583791), (19, 1495879), (77, 369113), (133, 213697), (209, 135989), (1463, 19427)]