21902288

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72047}}^1$

素因数の和:72074

約数の個数: 20

約数和(自身を含む): 44669760

約数和(自身を除く): 22767472

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72047, 144094, 288188, 576376, 1152752, 1368893, 2737786, 5475572, 10951144, 21902288]

約数ペア:

[(1, 21902288), (2, 10951144), (4, 5475572), (8, 2737786), (16, 1368893), (19, 1152752), (38, 576376), (76, 288188), (152, 144094), (304, 72047)]