21417991010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164753777}}^1$

素因数の和:164753797

約数の個数: 16

約数和(自身を含む): 41517952056

約数和(自身を除く): 20099961046

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 164753777, 329507554, 823768885, 1647537770, 2141799101, 4283598202, 10708995505, 21417991010]

約数ペア:

[(1, 21417991010), (2, 10708995505), (5, 4283598202), (10, 2141799101), (13, 1647537770), (26, 823768885), (65, 329507554), (130, 164753777)]