20843648

素因数分解:

$2^7\times 7^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:605

約数の個数: 64

約数和(自身を含む): 48649920

約数和(自身を除く): 27806272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 301, 344, 448, 541, 602, 688, 896, 1082, 1204, 1376, 2164, 2408, 2752, 3787, 4328, 4816, 5504, 7574, 8656, 9632, 15148, 17312, 19264, 23263, 30296, 34624, 38528, 46526, 60592, 69248, 93052, 121184, 162841, 186104, 242368, 325682, 372208, 484736, 651364, 744416, 1302728, 1488832, 2605456, 2977664, 5210912, 10421824, 20843648]

約数ペア:

[(1, 20843648), (2, 10421824), (4, 5210912), (7, 2977664), (8, 2605456), (14, 1488832), (16, 1302728), (28, 744416), (32, 651364), (43, 484736), (56, 372208), (64, 325682), (86, 242368), (112, 186104), (128, 162841), (172, 121184), (224, 93052), (301, 69248), (344, 60592), (448, 46526), (541, 38528), (602, 34624), (688, 30296), (896, 23263), (1082, 19264), (1204, 17312), (1376, 15148), (2164, 9632), (2408, 8656), (2752, 7574), (3787, 5504), (4328, 4816)]