20747829

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1523}}^1$

素因数の和:1784

約数の個数: 16

約数和(自身を含む): 29260800

約数和(自身を除く): 8512971

約数列:

[1, 3, 19, 57, 239, 717, 1523, 4541, 4569, 13623, 28937, 86811, 363997, 1091991, 6915943, 20747829]

約数ペア:

[(1, 20747829), (3, 6915943), (19, 1091991), (57, 363997), (239, 86811), (717, 28937), (1523, 13623), (4541, 4569)]