19985475

素因数分解:

$3^1\times 5^2\times {\mathrm{439}}^1\times {\mathrm{607}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 33172480

約数和(自身を除く): 13187005

約数列:

[1, 3, 5, 15, 25, 75, 439, 607, 1317, 1821, 2195, 3035, 6585, 9105, 10975, 15175, 32925, 45525, 266473, 799419, 1332365, 3997095, 6661825, 19985475]

約数ペア:

[(1, 19985475), (3, 6661825), (5, 3997095), (15, 1332365), (25, 799419), (75, 266473), (439, 45525), (607, 32925), (1317, 15175), (1821, 10975), (2195, 9105), (3035, 6585)]