21031041808

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1935847}}^1$

素因数の和:1935959

約数の個数: 40

約数和(自身を含む): 47048849792

約数和(自身を除く): 26017807984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 1935847, 3871694, 7743388, 13550929, 15486776, 27101858, 30973552, 54203716, 108407432, 187777159, 216814864, 375554318, 751108636, 1314440113, 1502217272, 2628880226, 3004434544, 5257760452, 10515520904, 21031041808]

約数ペア:

[(1, 21031041808), (2, 10515520904), (4, 5257760452), (7, 3004434544), (8, 2628880226), (14, 1502217272), (16, 1314440113), (28, 751108636), (56, 375554318), (97, 216814864), (112, 187777159), (194, 108407432), (388, 54203716), (679, 30973552), (776, 27101858), (1358, 15486776), (1552, 13550929), (2716, 7743388), (5432, 3871694), (10864, 1935847)]