20943735

素因数分解:

$3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3517}}^1$

素因数の和:3922

約数の個数: 16

約数和(自身を含む): 33603936

約数和(自身を除く): 12660201

約数列:

[1, 3, 5, 15, 397, 1191, 1985, 3517, 5955, 10551, 17585, 52755, 1396249, 4188747, 6981245, 20943735]

約数ペア:

[(1, 20943735), (3, 6981245), (5, 4188747), (15, 1396249), (397, 52755), (1191, 17585), (1985, 10551), (3517, 5955)]