20637903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 32820480

約数和(自身を除く): 12182577

約数列:

[1, 3, 11, 13, 33, 39, 73, 143, 219, 429, 659, 803, 949, 1977, 2409, 2847, 7249, 8567, 10439, 21747, 25701, 31317, 48107, 94237, 144321, 282711, 529177, 625391, 1587531, 1876173, 6879301, 20637903]

約数ペア:

[(1, 20637903), (3, 6879301), (11, 1876173), (13, 1587531), (33, 625391), (39, 529177), (73, 282711), (143, 144321), (219, 94237), (429, 48107), (659, 31317), (803, 25701), (949, 21747), (1977, 10439), (2409, 8567), (2847, 7249)]