21736431

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2113}}^1$

素因数の和:2252

約数の個数: 20

約数和(自身を含む): 32741632

約数和(自身を除く): 11005201

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2113, 3429, 6339, 10287, 19017, 57051, 171153, 268351, 805053, 2415159, 7245477, 21736431]

約数ペア:

[(1, 21736431), (3, 7245477), (9, 2415159), (27, 805053), (81, 268351), (127, 171153), (381, 57051), (1143, 19017), (2113, 10287), (3429, 6339)]