21284528

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{14947}}^1$

素因数の和:15044

約数の個数: 20

約数和(自身を含む): 41704920

約数和(自身を除く): 20420392

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 14947, 29894, 59788, 119576, 239152, 1330283, 2660566, 5321132, 10642264, 21284528]

約数ペア:

[(1, 21284528), (2, 10642264), (4, 5321132), (8, 2660566), (16, 1330283), (89, 239152), (178, 119576), (356, 59788), (712, 29894), (1424, 14947)]