21199386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271787}}^1$

素因数の和:271805

約数の個数: 16

約数和(自身を含む): 45660384

約数和(自身を除く): 24460998

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271787, 543574, 815361, 1630722, 3533231, 7066462, 10599693, 21199386]

約数ペア:

[(1, 21199386), (2, 10599693), (3, 7066462), (6, 3533231), (13, 1630722), (26, 815361), (39, 543574), (78, 271787)]