20753478

素因数分解:

$2^1\times 3^2\times {\mathrm{409}}^1\times {\mathrm{2819}}^1$

素因数の和:3236

約数の個数: 24

約数和(自身を含む): 45091800

約数和(自身を除く): 24338322

約数列:

[1, 2, 3, 6, 9, 18, 409, 818, 1227, 2454, 2819, 3681, 5638, 7362, 8457, 16914, 25371, 50742, 1152971, 2305942, 3458913, 6917826, 10376739, 20753478]

約数ペア:

[(1, 20753478), (2, 10376739), (3, 6917826), (6, 3458913), (9, 2305942), (18, 1152971), (409, 50742), (818, 25371), (1227, 16914), (2454, 8457), (2819, 7362), (3681, 5638)]