21091806

素因数分解:

$2^1\times 3^3\times {\mathrm{619}}^1\times {\mathrm{631}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 47020800

約数和(自身を除く): 25928994

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 619, 631, 1238, 1262, 1857, 1893, 3714, 3786, 5571, 5679, 11142, 11358, 16713, 17037, 33426, 34074, 390589, 781178, 1171767, 2343534, 3515301, 7030602, 10545903, 21091806]

約数ペア:

[(1, 21091806), (2, 10545903), (3, 7030602), (6, 3515301), (9, 2343534), (18, 1171767), (27, 781178), (54, 390589), (619, 34074), (631, 33426), (1238, 17037), (1262, 16713), (1857, 11358), (1893, 11142), (3714, 5679), (3786, 5571)]