21495448

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{1223}}^1$

素因数の和:1268

約数の個数: 32

約数和(自身を含む): 43696800

約数和(自身を除く): 22201352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1223, 1352, 2197, 2446, 4394, 4892, 8788, 9784, 15899, 17576, 31798, 63596, 127192, 206687, 413374, 826748, 1653496, 2686931, 5373862, 10747724, 21495448]

約数ペア:

[(1, 21495448), (2, 10747724), (4, 5373862), (8, 2686931), (13, 1653496), (26, 826748), (52, 413374), (104, 206687), (169, 127192), (338, 63596), (676, 31798), (1223, 17576), (1352, 15899), (2197, 9784), (2446, 8788), (4394, 4892)]