21304700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{11213}}^1$

素因数の和:11246

約数の個数: 36

約数和(自身を含む): 48668760

約数和(自身を除く): 27364060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 11213, 22426, 44852, 56065, 112130, 213047, 224260, 280325, 426094, 560650, 852188, 1065235, 1121300, 2130470, 4260940, 5326175, 10652350, 21304700]

約数ペア:

[(1, 21304700), (2, 10652350), (4, 5326175), (5, 4260940), (10, 2130470), (19, 1121300), (20, 1065235), (25, 852188), (38, 560650), (50, 426094), (76, 280325), (95, 224260), (100, 213047), (190, 112130), (380, 56065), (475, 44852), (950, 22426), (1900, 11213)]