20897272

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3253}}^1$

素因数の和:3343

約数の個数: 32

約数和(自身を含む): 43343280

約数和(自身を除く): 22446008

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3212, 3253, 6424, 6506, 13012, 26024, 35783, 71566, 143132, 237469, 286264, 474938, 949876, 1899752, 2612159, 5224318, 10448636, 20897272]

約数ペア:

[(1, 20897272), (2, 10448636), (4, 5224318), (8, 2612159), (11, 1899752), (22, 949876), (44, 474938), (73, 286264), (88, 237469), (146, 143132), (292, 71566), (584, 35783), (803, 26024), (1606, 13012), (3212, 6506), (3253, 6424)]