21508710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{911}}^1$

素因数の和:1708

約数の個数: 32

約数和(自身を含む): 51743232

約数和(自身を除く): 30234522

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 787, 911, 1574, 1822, 2361, 2733, 3935, 4555, 4722, 5466, 7870, 9110, 11805, 13665, 23610, 27330, 716957, 1433914, 2150871, 3584785, 4301742, 7169570, 10754355, 21508710]

約数ペア:

[(1, 21508710), (2, 10754355), (3, 7169570), (5, 4301742), (6, 3584785), (10, 2150871), (15, 1433914), (30, 716957), (787, 27330), (911, 23610), (1574, 13665), (1822, 11805), (2361, 9110), (2733, 7870), (3935, 5466), (4555, 4722)]