21047940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116933}}^1$

素因数の和:116948

約数の個数: 36

約数和(自身を含む): 63845964

約数和(自身を除く): 42798024

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116933, 233866, 350799, 467732, 584665, 701598, 1052397, 1169330, 1403196, 1753995, 2104794, 2338660, 3507990, 4209588, 5261985, 7015980, 10523970, 21047940]

約数ペア:

[(1, 21047940), (2, 10523970), (3, 7015980), (4, 5261985), (5, 4209588), (6, 3507990), (9, 2338660), (10, 2104794), (12, 1753995), (15, 1403196), (18, 1169330), (20, 1052397), (30, 701598), (36, 584665), (45, 467732), (60, 350799), (90, 233866), (180, 116933)]