21029365

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 30032640

約数和(自身を除く): 9003275

約数列:

[1, 5, 7, 35, 43, 89, 157, 215, 301, 445, 623, 785, 1099, 1505, 3115, 3827, 5495, 6751, 13973, 19135, 26789, 33755, 47257, 69865, 97811, 133945, 236285, 489055, 600839, 3004195, 4205873, 21029365]

約数ペア:

[(1, 21029365), (5, 4205873), (7, 3004195), (35, 600839), (43, 489055), (89, 236285), (157, 133945), (215, 97811), (301, 69865), (445, 47257), (623, 33755), (785, 26789), (1099, 19135), (1505, 13973), (3115, 6751), (3827, 5495)]