21896487

素因数分解:

$3^5\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11125593

約数列:

[1, 3, 9, 27, 81, 243, 251, 359, 753, 1077, 2259, 3231, 6777, 9693, 20331, 29079, 60993, 87237, 90109, 270327, 810981, 2432943, 7298829, 21896487]

約数ペア:

[(1, 21896487), (3, 7298829), (9, 2432943), (27, 810981), (81, 270327), (243, 90109), (251, 87237), (359, 60993), (753, 29079), (1077, 20331), (2259, 9693), (3231, 6777)]