219857805

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{212423}}^1$

素因数の和:212457

約数の個数: 24

約数和(自身を含む): 397657728

約数和(自身を除く): 177799923

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 212423, 637269, 1062115, 1911807, 3186345, 4885729, 9559035, 14657187, 24428645, 43971561, 73285935, 219857805]

約数ペア:

[(1, 219857805), (3, 73285935), (5, 43971561), (9, 24428645), (15, 14657187), (23, 9559035), (45, 4885729), (69, 3186345), (115, 1911807), (207, 1062115), (345, 637269), (1035, 212423)]