20714985

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5827}}^1$

素因数の和:5917

約数の個数: 24

約数和(自身を含む): 36366720

約数和(自身を除く): 15651735

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 5827, 17481, 29135, 52443, 87405, 262215, 460333, 1380999, 2301665, 4142997, 6904995, 20714985]

約数ペア:

[(1, 20714985), (3, 6904995), (5, 4142997), (9, 2301665), (15, 1380999), (45, 460333), (79, 262215), (237, 87405), (395, 52443), (711, 29135), (1185, 17481), (3555, 5827)]