20265735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{751}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 37251072

約数和(自身を除く): 16985337

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 257, 751, 771, 1285, 1799, 2253, 3755, 3855, 5257, 5397, 8995, 11265, 15771, 26285, 26985, 78855, 193007, 579021, 965035, 1351049, 2895105, 4053147, 6755245, 20265735]

約数ペア:

[(1, 20265735), (3, 6755245), (5, 4053147), (7, 2895105), (15, 1351049), (21, 965035), (35, 579021), (105, 193007), (257, 78855), (751, 26985), (771, 26285), (1285, 15771), (1799, 11265), (2253, 8995), (3755, 5397), (3855, 5257)]