208963215

素因数分解:

$3^2\times 5^1\times {\mathrm{1523}}^1\times {\mathrm{3049}}^1$

素因数の和:4583

約数の個数: 24

約数和(自身を含む): 362559600

約数和(自身を除く): 153596385

約数列:

[1, 3, 5, 9, 15, 45, 1523, 3049, 4569, 7615, 9147, 13707, 15245, 22845, 27441, 45735, 68535, 137205, 4643627, 13930881, 23218135, 41792643, 69654405, 208963215]

約数ペア:

[(1, 208963215), (3, 69654405), (5, 41792643), (9, 23218135), (15, 13930881), (45, 4643627), (1523, 137205), (3049, 68535), (4569, 45735), (7615, 27441), (9147, 22845), (13707, 15245)]