21110427

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2693}}^1$

素因数の和:2779

約数の個数: 24

約数和(自身を含む): 33340944

約数和(自身を除く): 12230517

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 2693, 7839, 8079, 24237, 35009, 105027, 180431, 315081, 541293, 1623879, 2345603, 7036809, 21110427]

約数ペア:

[(1, 21110427), (3, 7036809), (9, 2345603), (13, 1623879), (39, 541293), (67, 315081), (117, 180431), (201, 105027), (603, 35009), (871, 24237), (2613, 8079), (2693, 7839)]