21031607240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75112883}}^1$

素因数の和:75112901

約数の個数: 32

約数和(自身を含む): 54081276480

約数和(自身を除く): 33049669240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75112883, 150225766, 300451532, 375564415, 525790181, 600903064, 751128830, 1051580362, 1502257660, 2103160724, 2628950905, 3004515320, 4206321448, 5257901810, 10515803620, 21031607240]

約数ペア:

[(1, 21031607240), (2, 10515803620), (4, 5257901810), (5, 4206321448), (7, 3004515320), (8, 2628950905), (10, 2103160724), (14, 1502257660), (20, 1051580362), (28, 751128830), (35, 600903064), (40, 525790181), (56, 375564415), (70, 300451532), (140, 150225766), (280, 75112883)]