20392398

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:471

約数の個数: 80

約数和(自身を含む): 51470496

約数和(自身を除く): 31078098

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 81, 117, 138, 162, 207, 234, 299, 351, 414, 421, 598, 621, 702, 842, 897, 1053, 1242, 1263, 1794, 1863, 2106, 2526, 2691, 3726, 3789, 5382, 5473, 7578, 8073, 9683, 10946, 11367, 16146, 16419, 19366, 22734, 24219, 29049, 32838, 34101, 48438, 49257, 58098, 68202, 87147, 98514, 125879, 147771, 174294, 251758, 261441, 295542, 377637, 443313, 522882, 755274, 784323, 886626, 1132911, 1568646, 2265822, 3398733, 6797466, 10196199, 20392398]

約数ペア:

[(1, 20392398), (2, 10196199), (3, 6797466), (6, 3398733), (9, 2265822), (13, 1568646), (18, 1132911), (23, 886626), (26, 784323), (27, 755274), (39, 522882), (46, 443313), (54, 377637), (69, 295542), (78, 261441), (81, 251758), (117, 174294), (138, 147771), (162, 125879), (207, 98514), (234, 87147), (299, 68202), (351, 58098), (414, 49257), (421, 48438), (598, 34101), (621, 32838), (702, 29049), (842, 24219), (897, 22734), (1053, 19366), (1242, 16419), (1263, 16146), (1794, 11367), (1863, 10946), (2106, 9683), (2526, 8073), (2691, 7578), (3726, 5473), (3789, 5382)]