28871409

素因数分解:

$3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{4337}}^1$

素因数の和:4664

約数の個数: 16

約数和(自身を含む): 44143488

約数和(自身を除く): 15272079

約数列:

[1, 3, 7, 21, 317, 951, 2219, 4337, 6657, 13011, 30359, 91077, 1374829, 4124487, 9623803, 28871409]

約数ペア:

[(1, 28871409), (3, 9623803), (7, 4124487), (21, 1374829), (317, 91077), (951, 30359), (2219, 13011), (4337, 6657)]