28295701

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 35012736

約数和(自身を除く): 6717035

約数列:

[1, 7, 17, 71, 119, 197, 289, 497, 1207, 1379, 2023, 3349, 8449, 13987, 20519, 23443, 56933, 97909, 143633, 237779, 398531, 1664453, 4042243, 28295701]

約数ペア:

[(1, 28295701), (7, 4042243), (17, 1664453), (71, 398531), (119, 237779), (197, 143633), (289, 97909), (497, 56933), (1207, 23443), (1379, 20519), (2023, 13987), (3349, 8449)]