20498868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43801}}^1$

素因数の和:43824

約数の個数: 36

約数和(自身を含む): 55803748

約数和(自身を除く): 35304880

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43801, 87602, 131403, 175204, 262806, 394209, 525612, 569413, 788418, 1138826, 1576836, 1708239, 2277652, 3416478, 5124717, 6832956, 10249434, 20498868]

約数ペア:

[(1, 20498868), (2, 10249434), (3, 6832956), (4, 5124717), (6, 3416478), (9, 2277652), (12, 1708239), (13, 1576836), (18, 1138826), (26, 788418), (36, 569413), (39, 525612), (52, 394209), (78, 262806), (117, 175204), (156, 131403), (234, 87602), (468, 43801)]