64721426

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{420269}}^1$

素因数の和:420289

約数の個数: 16

約数和(自身を含む): 121037760

約数和(自身を除く): 56316334

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 420269, 840538, 2941883, 4622959, 5883766, 9245918, 32360713, 64721426]

約数ペア:

[(1, 64721426), (2, 32360713), (7, 9245918), (11, 5883766), (14, 4622959), (22, 2941883), (77, 840538), (154, 420269)]