21702660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51673}}^1$

素因数の和:51692

約数の個数: 48

約数和(自身を含む): 69449856

約数和(自身を除く): 47747196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 51673, 103346, 155019, 206692, 258365, 310038, 361711, 516730, 620076, 723422, 775095, 1033460, 1085133, 1446844, 1550190, 1808555, 2170266, 3100380, 3617110, 4340532, 5425665, 7234220, 10851330, 21702660]

約数ペア:

[(1, 21702660), (2, 10851330), (3, 7234220), (4, 5425665), (5, 4340532), (6, 3617110), (7, 3100380), (10, 2170266), (12, 1808555), (14, 1550190), (15, 1446844), (20, 1085133), (21, 1033460), (28, 775095), (30, 723422), (35, 620076), (42, 516730), (60, 361711), (70, 310038), (84, 258365), (105, 206692), (140, 155019), (210, 103346), (420, 51673)]