21099945

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^2$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 34678656

約数和(自身を除く): 13578711

約数列:

[1, 3, 5, 15, 47, 141, 173, 235, 519, 705, 865, 2595, 8131, 24393, 29929, 40655, 89787, 121965, 149645, 448935, 1406663, 4219989, 7033315, 21099945]

約数ペア:

[(1, 21099945), (3, 7033315), (5, 4219989), (15, 1406663), (47, 448935), (141, 149645), (173, 121965), (235, 89787), (519, 40655), (705, 29929), (865, 24393), (2595, 8131)]