21284658

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 26518734

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 151, 191, 246, 302, 369, 382, 453, 573, 738, 906, 1146, 1359, 1719, 2718, 3438, 6191, 7831, 12382, 15662, 18573, 23493, 28841, 37146, 46986, 55719, 57682, 70479, 86523, 111438, 140958, 173046, 259569, 519138, 1182481, 2364962, 3547443, 7094886, 10642329, 21284658]

約数ペア:

[(1, 21284658), (2, 10642329), (3, 7094886), (6, 3547443), (9, 2364962), (18, 1182481), (41, 519138), (82, 259569), (123, 173046), (151, 140958), (191, 111438), (246, 86523), (302, 70479), (369, 57682), (382, 55719), (453, 46986), (573, 37146), (738, 28841), (906, 23493), (1146, 18573), (1359, 15662), (1719, 12382), (2718, 7831), (3438, 6191)]