21053358

素因数分解:

$2^1\times 3^4\times {\mathrm{129959}}^1$

素因数の和:129973

約数の個数: 20

約数和(自身を含む): 47175480

約数和(自身を除く): 26122122

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129959, 259918, 389877, 779754, 1169631, 2339262, 3508893, 7017786, 10526679, 21053358]

約数ペア:

[(1, 21053358), (2, 10526679), (3, 7017786), (6, 3508893), (9, 2339262), (18, 1169631), (27, 779754), (54, 389877), (81, 259918), (162, 129959)]