21091374

素因数分解:

$2^1\times 3^3\times {\mathrm{390581}}^1$

素因数の和:390592

約数の個数: 16

約数和(自身を含む): 46869840

約数和(自身を除く): 25778466

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390581, 781162, 1171743, 2343486, 3515229, 7030458, 10545687, 21091374]

約数ペア:

[(1, 21091374), (2, 10545687), (3, 7030458), (6, 3515229), (9, 2343486), (18, 1171743), (27, 781162), (54, 390581)]