21628310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{557}}^1$

素因数の和:928

約数の個数: 32

約数和(自身を含む): 42666912

約数和(自身を除く): 21038602

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 353, 557, 706, 1114, 1765, 2785, 3530, 3883, 5570, 6127, 7766, 12254, 19415, 30635, 38830, 61270, 196621, 393242, 983105, 1966210, 2162831, 4325662, 10814155, 21628310]

約数ペア:

[(1, 21628310), (2, 10814155), (5, 4325662), (10, 2162831), (11, 1966210), (22, 983105), (55, 393242), (110, 196621), (353, 61270), (557, 38830), (706, 30635), (1114, 19415), (1765, 12254), (2785, 7766), (3530, 6127), (3883, 5570)]