20838488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5507}}^1$

素因数の和:5567

約数の個数: 32

約数和(自身を含む): 43623360

約数和(自身を除く): 22784872

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5507, 11014, 22028, 44056, 60577, 121154, 236801, 242308, 473602, 484616, 947204, 1894408, 2604811, 5209622, 10419244, 20838488]

約数ペア:

[(1, 20838488), (2, 10419244), (4, 5209622), (8, 2604811), (11, 1894408), (22, 947204), (43, 484616), (44, 473602), (86, 242308), (88, 236801), (172, 121154), (344, 60577), (473, 44056), (946, 22028), (1892, 11014), (3784, 5507)]