21330372

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1289}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 57214080

約数和(自身を除く): 35883708

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1289, 1379, 2364, 2578, 2758, 3867, 4137, 5156, 5516, 7734, 8274, 9023, 15468, 16548, 18046, 27069, 36092, 54138, 108276, 253933, 507866, 761799, 1015732, 1523598, 1777531, 3047196, 3555062, 5332593, 7110124, 10665186, 21330372]

約数ペア:

[(1, 21330372), (2, 10665186), (3, 7110124), (4, 5332593), (6, 3555062), (7, 3047196), (12, 1777531), (14, 1523598), (21, 1015732), (28, 761799), (42, 507866), (84, 253933), (197, 108276), (394, 54138), (591, 36092), (788, 27069), (1182, 18046), (1289, 16548), (1379, 15468), (2364, 9023), (2578, 8274), (2758, 7734), (3867, 5516), (4137, 5156)]