20761984

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8537}}^1$

素因数の和:8570

約数の個数: 32

約数和(自身を含む): 43543800

約数和(自身を除く): 22781816

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8537, 17074, 34148, 68296, 136592, 162203, 273184, 324406, 546368, 648812, 1092736, 1297624, 2595248, 5190496, 10380992, 20761984]

約数ペア:

[(1, 20761984), (2, 10380992), (4, 5190496), (8, 2595248), (16, 1297624), (19, 1092736), (32, 648812), (38, 546368), (64, 324406), (76, 273184), (128, 162203), (152, 136592), (304, 68296), (608, 34148), (1216, 17074), (2432, 8537)]