18978399

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3617}}^1$

素因数の和:3687

約数の個数: 24

約数和(自身を含む): 30478032

約数和(自身を除く): 11499633

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 3617, 5247, 10851, 32553, 39787, 119361, 191701, 358083, 575103, 1725309, 2108711, 6326133, 18978399]

約数ペア:

[(1, 18978399), (3, 6326133), (9, 2108711), (11, 1725309), (33, 575103), (53, 358083), (99, 191701), (159, 119361), (477, 39787), (583, 32553), (1749, 10851), (3617, 5247)]