21067040

素因数分解:

$2^5\times 5^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 50045688

約数和(自身を除く): 28978648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 353, 373, 706, 746, 1412, 1492, 1765, 1865, 2824, 2984, 3530, 3730, 5648, 5968, 7060, 7460, 11296, 11936, 14120, 14920, 28240, 29840, 56480, 59680, 131669, 263338, 526676, 658345, 1053352, 1316690, 2106704, 2633380, 4213408, 5266760, 10533520, 21067040]

約数ペア:

[(1, 21067040), (2, 10533520), (4, 5266760), (5, 4213408), (8, 2633380), (10, 2106704), (16, 1316690), (20, 1053352), (32, 658345), (40, 526676), (80, 263338), (160, 131669), (353, 59680), (373, 56480), (706, 29840), (746, 28240), (1412, 14920), (1492, 14120), (1765, 11936), (1865, 11296), (2824, 7460), (2984, 7060), (3530, 5968), (3730, 5648)]