21147704

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{317}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 20065096

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 269, 317, 538, 634, 1076, 1268, 2152, 2536, 8339, 9827, 16678, 19654, 33356, 39308, 66712, 78616, 85273, 170546, 341092, 682184, 2643463, 5286926, 10573852, 21147704]

約数ペア:

[(1, 21147704), (2, 10573852), (4, 5286926), (8, 2643463), (31, 682184), (62, 341092), (124, 170546), (248, 85273), (269, 78616), (317, 66712), (538, 39308), (634, 33356), (1076, 19654), (1268, 16678), (2152, 9827), (2536, 8339)]