20889957

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 12702363

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 391, 561, 759, 1173, 1619, 4301, 4857, 12903, 17809, 27523, 37237, 53427, 82569, 111711, 302753, 409607, 633029, 908259, 1228821, 1899087, 6963319, 20889957]

約数ペア:

[(1, 20889957), (3, 6963319), (11, 1899087), (17, 1228821), (23, 908259), (33, 633029), (51, 409607), (69, 302753), (187, 111711), (253, 82569), (391, 53427), (561, 37237), (759, 27523), (1173, 17809), (1619, 12903), (4301, 4857)]