29987739

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{7877}}^1$

素因数の和:7936

約数の個数: 20

約数和(自身を含む): 45755424

約数和(自身を除く): 15767685

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 7877, 23631, 70893, 212679, 370219, 638037, 1110657, 3331971, 9995913, 29987739]

約数ペア:

[(1, 29987739), (3, 9995913), (9, 3331971), (27, 1110657), (47, 638037), (81, 370219), (141, 212679), (423, 70893), (1269, 23631), (3807, 7877)]