21044248

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138449}}^1$

素因数の和:138474

約数の個数: 16

約数和(自身を含む): 41535000

約数和(自身を除く): 20490752

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138449, 276898, 553796, 1107592, 2630531, 5261062, 10522124, 21044248]

約数ペア:

[(1, 21044248), (2, 10522124), (4, 5261062), (8, 2630531), (19, 1107592), (38, 553796), (76, 276898), (152, 138449)]