21504200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5659}}^1$

素因数の和:5694

約数の個数: 48

約数和(自身を含む): 52638000

約数和(自身を除く): 31133800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5659, 11318, 22636, 28295, 45272, 56590, 107521, 113180, 141475, 215042, 226360, 282950, 430084, 537605, 565900, 860168, 1075210, 1131800, 2150420, 2688025, 4300840, 5376050, 10752100, 21504200]

約数ペア:

[(1, 21504200), (2, 10752100), (4, 5376050), (5, 4300840), (8, 2688025), (10, 2150420), (19, 1131800), (20, 1075210), (25, 860168), (38, 565900), (40, 537605), (50, 430084), (76, 282950), (95, 226360), (100, 215042), (152, 141475), (190, 113180), (200, 107521), (380, 56590), (475, 45272), (760, 28295), (950, 22636), (1900, 11318), (3800, 5659)]