21037374

素因数分解:

$2^1\times 3^3\times {\mathrm{223}}^1\times {\mathrm{1747}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 46986240

約数和(自身を除く): 25948866

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 223, 446, 669, 1338, 1747, 2007, 3494, 4014, 5241, 6021, 10482, 12042, 15723, 31446, 47169, 94338, 389581, 779162, 1168743, 2337486, 3506229, 7012458, 10518687, 21037374]

約数ペア:

[(1, 21037374), (2, 10518687), (3, 7012458), (6, 3506229), (9, 2337486), (18, 1168743), (27, 779162), (54, 389581), (223, 94338), (446, 47169), (669, 31446), (1338, 15723), (1747, 12042), (2007, 10482), (3494, 6021), (4014, 5241)]