28400788

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42013}}^1$

素因数の和:42043

約数の個数: 18

約数和(自身を含む): 53819934

約数和(自身を除く): 25419146

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42013, 84026, 168052, 546169, 1092338, 2184676, 7100197, 14200394, 28400788]

約数ペア:

[(1, 28400788), (2, 14200394), (4, 7100197), (13, 2184676), (26, 1092338), (52, 546169), (169, 168052), (338, 84026), (676, 42013)]