21982844

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1049}}^1$

素因数の和:1110

約数の個数: 36

約数和(自身を含む): 43041600

約数和(自身を除く): 21058756

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 1049, 1612, 2098, 4196, 5239, 10478, 13637, 20956, 27274, 32519, 54548, 65038, 130076, 177281, 354562, 422747, 709124, 845494, 1690988, 5495711, 10991422, 21982844]

約数ペア:

[(1, 21982844), (2, 10991422), (4, 5495711), (13, 1690988), (26, 845494), (31, 709124), (52, 422747), (62, 354562), (124, 177281), (169, 130076), (338, 65038), (403, 54548), (676, 32519), (806, 27274), (1049, 20956), (1612, 13637), (2098, 10478), (4196, 5239)]