18513990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18701}}^1$

素因数の和:18725

約数の個数: 48

約数和(自身を含む): 52515216

約数和(自身を除く): 34001226

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 18701, 37402, 56103, 93505, 112206, 168309, 187010, 205711, 280515, 336618, 411422, 561030, 617133, 841545, 1028555, 1234266, 1683090, 1851399, 2057110, 3085665, 3702798, 6171330, 9256995, 18513990]

約数ペア:

[(1, 18513990), (2, 9256995), (3, 6171330), (5, 3702798), (6, 3085665), (9, 2057110), (10, 1851399), (11, 1683090), (15, 1234266), (18, 1028555), (22, 841545), (30, 617133), (33, 561030), (45, 411422), (55, 336618), (66, 280515), (90, 205711), (99, 187010), (110, 168309), (165, 112206), (198, 93505), (330, 56103), (495, 37402), (990, 18701)]