21435070

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 18608450

約数列:

[1, 2, 5, 10, 43, 79, 86, 158, 215, 395, 430, 631, 790, 1262, 3155, 3397, 6310, 6794, 16985, 27133, 33970, 49849, 54266, 99698, 135665, 249245, 271330, 498490, 2143507, 4287014, 10717535, 21435070]

約数ペア:

[(1, 21435070), (2, 10717535), (5, 4287014), (10, 2143507), (43, 498490), (79, 271330), (86, 249245), (158, 135665), (215, 99698), (395, 54266), (430, 49849), (631, 33970), (790, 27133), (1262, 16985), (3155, 6794), (3397, 6310)]