21464240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38329}}^1$

素因数の和:38349

約数の個数: 40

約数和(自身を含む): 57035040

約数和(自身を除く): 35570800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38329, 76658, 153316, 191645, 268303, 306632, 383290, 536606, 613264, 766580, 1073212, 1341515, 1533160, 2146424, 2683030, 3066320, 4292848, 5366060, 10732120, 21464240]

約数ペア:

[(1, 21464240), (2, 10732120), (4, 5366060), (5, 4292848), (7, 3066320), (8, 2683030), (10, 2146424), (14, 1533160), (16, 1341515), (20, 1073212), (28, 766580), (35, 613264), (40, 536606), (56, 383290), (70, 306632), (80, 268303), (112, 191645), (140, 153316), (280, 76658), (560, 38329)]