21302288

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4639}}^1$

素因数の和:4695

約数の個数: 40

約数和(自身を含む): 48330240

約数和(自身を除く): 27027952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4592, 4639, 9278, 18556, 32473, 37112, 64946, 74224, 129892, 190199, 259784, 380398, 519568, 760796, 1331393, 1521592, 2662786, 3043184, 5325572, 10651144, 21302288]

約数ペア:

[(1, 21302288), (2, 10651144), (4, 5325572), (7, 3043184), (8, 2662786), (14, 1521592), (16, 1331393), (28, 760796), (41, 519568), (56, 380398), (82, 259784), (112, 190199), (164, 129892), (287, 74224), (328, 64946), (574, 37112), (656, 32473), (1148, 18556), (2296, 9278), (4592, 4639)]