21306420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118369}}^1$

素因数の和:118384

約数の個数: 36

約数和(自身を含む): 64630020

約数和(自身を除く): 43323600

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118369, 236738, 355107, 473476, 591845, 710214, 1065321, 1183690, 1420428, 1775535, 2130642, 2367380, 3551070, 4261284, 5326605, 7102140, 10653210, 21306420]

約数ペア:

[(1, 21306420), (2, 10653210), (3, 7102140), (4, 5326605), (5, 4261284), (6, 3551070), (9, 2367380), (10, 2130642), (12, 1775535), (15, 1420428), (18, 1183690), (20, 1065321), (30, 710214), (36, 591845), (45, 473476), (60, 355107), (90, 236738), (180, 118369)]