21783086

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{223}}^1$

素因数の和:285

約数の個数: 36

約数和(自身を含む): 37753632

約数和(自身を除く): 15970546

約数列:

[1, 2, 13, 17, 26, 34, 169, 221, 223, 289, 338, 442, 446, 578, 2873, 2899, 3757, 3791, 5746, 5798, 7514, 7582, 37687, 48841, 49283, 64447, 75374, 97682, 98566, 128894, 640679, 837811, 1281358, 1675622, 10891543, 21783086]

約数ペア:

[(1, 21783086), (2, 10891543), (13, 1675622), (17, 1281358), (26, 837811), (34, 640679), (169, 128894), (221, 98566), (223, 97682), (289, 75374), (338, 64447), (442, 49283), (446, 48841), (578, 37687), (2873, 7582), (2899, 7514), (3757, 5798), (3791, 5746)]