28325409

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70991}}^1$

素因数の和:71020

約数の個数: 16

約数和(自身を含む): 45434880

約数和(自身を除く): 17109471

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70991, 212973, 496937, 1348829, 1490811, 4046487, 9441803, 28325409]

約数ペア:

[(1, 28325409), (3, 9441803), (7, 4046487), (19, 1490811), (21, 1348829), (57, 496937), (133, 212973), (399, 70991)]