18521481

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{5557}}^1$

素因数の和:5672

約数の個数: 16

約数和(自身を含む): 27211968

約数和(自身を除く): 8690487

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 5557, 16671, 61127, 183381, 561257, 1683771, 6173827, 18521481]

約数ペア:

[(1, 18521481), (3, 6173827), (11, 1683771), (33, 561257), (101, 183381), (303, 61127), (1111, 16671), (3333, 5557)]