21075700

素因数分解:

$2^2\times 5^2\times {\mathrm{419}}^1\times {\mathrm{503}}^1$

素因数の和:936

約数の個数: 36

約数和(自身を含む): 45934560

約数和(自身を除く): 24858860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 419, 503, 838, 1006, 1676, 2012, 2095, 2515, 4190, 5030, 8380, 10060, 10475, 12575, 20950, 25150, 41900, 50300, 210757, 421514, 843028, 1053785, 2107570, 4215140, 5268925, 10537850, 21075700]

約数ペア:

[(1, 21075700), (2, 10537850), (4, 5268925), (5, 4215140), (10, 2107570), (20, 1053785), (25, 843028), (50, 421514), (100, 210757), (419, 50300), (503, 41900), (838, 25150), (1006, 20950), (1676, 12575), (2012, 10475), (2095, 10060), (2515, 8380), (4190, 5030)]