20845269

素因数分解:

$3^5\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:911

約数の個数: 24

約数和(自身を含む): 31551520

約数和(自身を除く): 10706251

約数列:

[1, 3, 9, 27, 81, 109, 243, 327, 787, 981, 2361, 2943, 7083, 8829, 21249, 26487, 63747, 85783, 191241, 257349, 772047, 2316141, 6948423, 20845269]

約数ペア:

[(1, 20845269), (3, 6948423), (9, 2316141), (27, 772047), (81, 257349), (109, 191241), (243, 85783), (327, 63747), (787, 26487), (981, 21249), (2361, 8829), (2943, 7083)]