20815696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1171}}^1$

素因数の和:1291

約数の個数: 40

約数和(自身を含む): 44470368

約数和(自身を除く): 23654672

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 101, 176, 202, 404, 808, 1111, 1171, 1616, 2222, 2342, 4444, 4684, 8888, 9368, 12881, 17776, 18736, 25762, 51524, 103048, 118271, 206096, 236542, 473084, 946168, 1300981, 1892336, 2601962, 5203924, 10407848, 20815696]

約数ペア:

[(1, 20815696), (2, 10407848), (4, 5203924), (8, 2601962), (11, 1892336), (16, 1300981), (22, 946168), (44, 473084), (88, 236542), (101, 206096), (176, 118271), (202, 103048), (404, 51524), (808, 25762), (1111, 18736), (1171, 17776), (1616, 12881), (2222, 9368), (2342, 8888), (4444, 4684)]