28184913

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2897}}^1$

素因数の和:2973

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 15215535

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2897, 3243, 8691, 9729, 26073, 66631, 136159, 199893, 408477, 599679, 1225431, 3131657, 9394971, 28184913]

約数ペア:

[(1, 28184913), (3, 9394971), (9, 3131657), (23, 1225431), (47, 599679), (69, 408477), (141, 199893), (207, 136159), (423, 66631), (1081, 26073), (2897, 9729), (3243, 8691)]