21150540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117503}}^1$

素因数の和:117518

約数の個数: 36

約数和(自身を含む): 64157184

約数和(自身を除く): 43006644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117503, 235006, 352509, 470012, 587515, 705018, 1057527, 1175030, 1410036, 1762545, 2115054, 2350060, 3525090, 4230108, 5287635, 7050180, 10575270, 21150540]

約数ペア:

[(1, 21150540), (2, 10575270), (3, 7050180), (4, 5287635), (5, 4230108), (6, 3525090), (9, 2350060), (10, 2115054), (12, 1762545), (15, 1410036), (18, 1175030), (20, 1057527), (30, 705018), (36, 587515), (45, 470012), (60, 352509), (90, 235006), (180, 117503)]