20509108178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{11113}}^1\times {\mathrm{70981}}^1$

素因数の和:82109

約数の個数: 16

約数和(自身を含む): 33133545816

約数和(自身を除く): 12624437638

約数列:

[1, 2, 13, 26, 11113, 22226, 70981, 141962, 144469, 288938, 922753, 1845506, 788811853, 1577623706, 10254554089, 20509108178]

約数ペア:

[(1, 20509108178), (2, 10254554089), (13, 1577623706), (26, 788811853), (11113, 1845506), (22226, 922753), (70981, 288938), (141962, 144469)]