18915494

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{293}}^1$

素因数の和:512

約数の個数: 24

約数和(自身を含む): 30989952

約数和(自身を除く): 12074458

約数列:

[1, 2, 13, 26, 169, 191, 293, 338, 382, 586, 2483, 3809, 4966, 7618, 32279, 49517, 55963, 64558, 99034, 111926, 727519, 1455038, 9457747, 18915494]

約数ペア:

[(1, 18915494), (2, 9457747), (13, 1455038), (26, 727519), (169, 111926), (191, 99034), (293, 64558), (338, 55963), (382, 49517), (586, 32279), (2483, 7618), (3809, 4966)]