21834449

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 27655488

約数和(自身を除く): 5821039

約数列:

[1, 7, 13, 49, 91, 151, 227, 637, 1057, 1589, 1963, 2951, 7399, 11123, 13741, 20657, 34277, 96187, 144599, 239939, 445601, 1679573, 3119207, 21834449]

約数ペア:

[(1, 21834449), (7, 3119207), (13, 1679573), (49, 445601), (91, 239939), (151, 144599), (227, 96187), (637, 34277), (1057, 20657), (1589, 13741), (1963, 11123), (2951, 7399)]