21000309538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{2909}}^1\times {\mathrm{277657}}^1$

素因数の和:280581

約数の個数: 16

約数和(自身を含む): 33935360760

約数和(自身を除く): 12935051222

約数列:

[1, 2, 13, 26, 2909, 5818, 37817, 75634, 277657, 555314, 3609541, 7219082, 807704213, 1615408426, 10500154769, 21000309538]

約数ペア:

[(1, 21000309538), (2, 10500154769), (13, 1615408426), (26, 807704213), (2909, 7219082), (5818, 3609541), (37817, 555314), (75634, 277657)]