20624692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1060

約数の個数: 36

約数和(自身を含む): 40636288

約数和(自身を除く): 20011596

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 991, 1892, 1982, 3964, 5203, 10406, 10901, 20812, 21802, 42613, 43604, 85226, 119911, 170452, 239822, 468743, 479644, 937486, 1874972, 5156173, 10312346, 20624692]

約数ペア:

[(1, 20624692), (2, 10312346), (4, 5156173), (11, 1874972), (22, 937486), (43, 479644), (44, 468743), (86, 239822), (121, 170452), (172, 119911), (242, 85226), (473, 43604), (484, 42613), (946, 21802), (991, 20812), (1892, 10901), (1982, 10406), (3964, 5203)]