28948857

素因数分解:

$3^1\times 7^4\times {\mathrm{4019}}^1$

素因数の和:4050

約数の個数: 20

約数和(自身を含む): 45040080

約数和(自身を除く): 16091223

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 4019, 7203, 12057, 28133, 84399, 196931, 590793, 1378517, 4135551, 9649619, 28948857]

約数ペア:

[(1, 28948857), (3, 9649619), (7, 4135551), (21, 1378517), (49, 590793), (147, 196931), (343, 84399), (1029, 28133), (2401, 12057), (4019, 7203)]