20823021

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 11317779

約数列:

[1, 3, 9, 27, 47, 61, 141, 183, 269, 423, 549, 807, 1269, 1647, 2421, 2867, 7263, 8601, 12643, 16409, 25803, 37929, 49227, 77409, 113787, 147681, 341361, 443043, 771223, 2313669, 6941007, 20823021]

約数ペア:

[(1, 20823021), (3, 6941007), (9, 2313669), (27, 771223), (47, 443043), (61, 341361), (141, 147681), (183, 113787), (269, 77409), (423, 49227), (549, 37929), (807, 25803), (1269, 16409), (1647, 12643), (2421, 8601), (2867, 7263)]