21897424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72031}}^1$

素因数の和:72058

約数の個数: 20

約数和(自身を含む): 44659840

約数和(自身を除く): 22762416

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72031, 144062, 288124, 576248, 1152496, 1368589, 2737178, 5474356, 10948712, 21897424]

約数ペア:

[(1, 21897424), (2, 10948712), (4, 5474356), (8, 2737178), (16, 1368589), (19, 1152496), (38, 576248), (76, 288124), (152, 144062), (304, 72031)]