21609990

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8893}}^1$

素因数の和:8915

約数の個数: 48

約数和(自身を含む): 58273488

約数和(自身を除く): 36663498

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8893, 17786, 26679, 44465, 53358, 80037, 88930, 133395, 160074, 240111, 266790, 400185, 480222, 720333, 800370, 1200555, 1440666, 2160999, 2401110, 3601665, 4321998, 7203330, 10804995, 21609990]

約数ペア:

[(1, 21609990), (2, 10804995), (3, 7203330), (5, 4321998), (6, 3601665), (9, 2401110), (10, 2160999), (15, 1440666), (18, 1200555), (27, 800370), (30, 720333), (45, 480222), (54, 400185), (81, 266790), (90, 240111), (135, 160074), (162, 133395), (243, 88930), (270, 80037), (405, 53358), (486, 44465), (810, 26679), (1215, 17786), (2430, 8893)]