21047724

素因数分解:

$2^2\times 3^2\times {\mathrm{584659}}^1$

素因数の和:584669

約数の個数: 18

約数和(自身を含む): 53204060

約数和(自身を除く): 32156336

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 584659, 1169318, 1753977, 2338636, 3507954, 5261931, 7015908, 10523862, 21047724]

約数ペア:

[(1, 21047724), (2, 10523862), (3, 7015908), (4, 5261931), (6, 3507954), (9, 2338636), (12, 1753977), (18, 1169318), (36, 584659)]