19958466

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 45122112

約数和(自身を除く): 25163646

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 74, 111, 121, 222, 242, 363, 407, 726, 743, 814, 1221, 1486, 2229, 2442, 4458, 4477, 8173, 8954, 13431, 16346, 24519, 26862, 27491, 49038, 54982, 82473, 89903, 164946, 179806, 269709, 302401, 539418, 604802, 907203, 1814406, 3326411, 6652822, 9979233, 19958466]

約数ペア:

[(1, 19958466), (2, 9979233), (3, 6652822), (6, 3326411), (11, 1814406), (22, 907203), (33, 604802), (37, 539418), (66, 302401), (74, 269709), (111, 179806), (121, 164946), (222, 89903), (242, 82473), (363, 54982), (407, 49038), (726, 27491), (743, 26862), (814, 24519), (1221, 16346), (1486, 13431), (2229, 8954), (2442, 8173), (4458, 4477)]