21647502

素因数分解:

$2^1\times 3^2\times {\mathrm{223}}^1\times {\mathrm{5393}}^1$

素因数の和:5624

約数の個数: 24

約数和(自身を含む): 47121984

約数和(自身を除く): 25474482

約数列:

[1, 2, 3, 6, 9, 18, 223, 446, 669, 1338, 2007, 4014, 5393, 10786, 16179, 32358, 48537, 97074, 1202639, 2405278, 3607917, 7215834, 10823751, 21647502]

約数ペア:

[(1, 21647502), (2, 10823751), (3, 7215834), (6, 3607917), (9, 2405278), (18, 1202639), (223, 97074), (446, 48537), (669, 32358), (1338, 16179), (2007, 10786), (4014, 5393)]