21150400

素因数分解:

$2^6\times 5^2\times {\mathrm{13219}}^1$

素因数の和:13241

約数の個数: 42

約数和(自身を含む): 52047140

約数和(自身を除く): 30896740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13219, 26438, 52876, 66095, 105752, 132190, 211504, 264380, 330475, 423008, 528760, 660950, 846016, 1057520, 1321900, 2115040, 2643800, 4230080, 5287600, 10575200, 21150400]

約数ペア:

[(1, 21150400), (2, 10575200), (4, 5287600), (5, 4230080), (8, 2643800), (10, 2115040), (16, 1321900), (20, 1057520), (25, 846016), (32, 660950), (40, 528760), (50, 423008), (64, 330475), (80, 264380), (100, 211504), (160, 132190), (200, 105752), (320, 66095), (400, 52876), (800, 26438), (1600, 13219)]