20603163

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51637}}^1$

素因数の和:51666

約数の個数: 16

約数和(自身を含む): 33048320

約数和(自身を除く): 12445157

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51637, 154911, 361459, 981103, 1084377, 2943309, 6867721, 20603163]

約数ペア:

[(1, 20603163), (3, 6867721), (7, 2943309), (19, 1084377), (21, 981103), (57, 361459), (133, 154911), (399, 51637)]