28198905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{991}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 51806208

約数和(自身を除く): 23607303

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 271, 813, 991, 1355, 1897, 2973, 4065, 4955, 5691, 6937, 9485, 14865, 20811, 28455, 34685, 104055, 268561, 805683, 1342805, 1879927, 4028415, 5639781, 9399635, 28198905]

約数ペア:

[(1, 28198905), (3, 9399635), (5, 5639781), (7, 4028415), (15, 1879927), (21, 1342805), (35, 805683), (105, 268561), (271, 104055), (813, 34685), (991, 28455), (1355, 20811), (1897, 14865), (2973, 9485), (4065, 6937), (4955, 5691)]