420265521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{7057}}^1$

素因数の和:7585

約数の個数: 24

約数和(自身を含む): 655123560

約数和(自身を除く): 234858039

約数列:

[1, 3, 9, 13, 39, 117, 509, 1527, 4581, 6617, 7057, 19851, 21171, 59553, 63513, 91741, 275223, 825669, 3592013, 10776039, 32328117, 46696169, 140088507, 420265521]

約数ペア:

[(1, 420265521), (3, 140088507), (9, 46696169), (13, 32328117), (39, 10776039), (117, 3592013), (509, 825669), (1527, 275223), (4581, 91741), (6617, 63513), (7057, 59553), (19851, 21171)]