20884986

素因数分解:

$2^1\times 3^3\times {\mathrm{439}}^1\times {\mathrm{881}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25684614

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 439, 878, 881, 1317, 1762, 2634, 2643, 3951, 5286, 7902, 7929, 11853, 15858, 23706, 23787, 47574, 386759, 773518, 1160277, 2320554, 3480831, 6961662, 10442493, 20884986]

約数ペア:

[(1, 20884986), (2, 10442493), (3, 6961662), (6, 3480831), (9, 2320554), (18, 1160277), (27, 773518), (54, 386759), (439, 47574), (878, 23787), (881, 23706), (1317, 15858), (1762, 11853), (2634, 7929), (2643, 7902), (3951, 5286)]