21340377

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 31868928

約数和(自身を除く): 10528551

約数列:

[1, 3, 9, 41, 123, 151, 369, 383, 453, 1149, 1359, 3447, 6191, 15703, 18573, 47109, 55719, 57833, 141327, 173499, 520497, 2371153, 7113459, 21340377]

約数ペア:

[(1, 21340377), (3, 7113459), (9, 2371153), (41, 520497), (123, 173499), (151, 141327), (369, 57833), (383, 55719), (453, 47109), (1149, 18573), (1359, 15703), (3447, 6191)]