21303568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9311}}^1$

素因数の和:9343

約数の個数: 40

約数和(自身を含む): 48496896

約数和(自身を除く): 27193328

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9311, 18622, 37244, 74488, 102421, 121043, 148976, 204842, 242086, 409684, 484172, 819368, 968344, 1331473, 1638736, 1936688, 2662946, 5325892, 10651784, 21303568]

約数ペア:

[(1, 21303568), (2, 10651784), (4, 5325892), (8, 2662946), (11, 1936688), (13, 1638736), (16, 1331473), (22, 968344), (26, 819368), (44, 484172), (52, 409684), (88, 242086), (104, 204842), (143, 148976), (176, 121043), (208, 102421), (286, 74488), (572, 37244), (1144, 18622), (2288, 9311)]