19542224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2067

約数の個数: 40

約数和(自身を含む): 41664000

約数和(自身を除く): 22121776

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 1999, 2444, 3998, 4888, 7996, 9776, 15992, 25987, 31984, 51974, 93953, 103948, 187906, 207896, 375812, 415792, 751624, 1221389, 1503248, 2442778, 4885556, 9771112, 19542224]

約数ペア:

[(1, 19542224), (2, 9771112), (4, 4885556), (8, 2442778), (13, 1503248), (16, 1221389), (26, 751624), (47, 415792), (52, 375812), (94, 207896), (104, 187906), (188, 103948), (208, 93953), (376, 51974), (611, 31984), (752, 25987), (1222, 15992), (1999, 9776), (2444, 7996), (3998, 4888)]