21207344

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69761}}^1$

素因数の和:69788

約数の個数: 20

約数和(自身を含む): 43252440

約数和(自身を除く): 22045096

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69761, 139522, 279044, 558088, 1116176, 1325459, 2650918, 5301836, 10603672, 21207344]

約数ペア:

[(1, 21207344), (2, 10603672), (4, 5301836), (8, 2650918), (16, 1325459), (19, 1116176), (38, 558088), (76, 279044), (152, 139522), (304, 69761)]