20928496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76943}}^1$

素因数の和:76968

約数の個数: 20

約数和(自身を含む): 42934752

約数和(自身を除く): 22006256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76943, 153886, 307772, 615544, 1231088, 1308031, 2616062, 5232124, 10464248, 20928496]

約数ペア:

[(1, 20928496), (2, 10464248), (4, 5232124), (8, 2616062), (16, 1308031), (17, 1231088), (34, 615544), (68, 307772), (136, 153886), (272, 76943)]