21485884

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40387}}^1$

素因数の和:40417

約数の個数: 24

約数和(自身を含む): 45234560

約数和(自身を除く): 23748676

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40387, 80774, 161548, 282709, 565418, 767353, 1130836, 1534706, 3069412, 5371471, 10742942, 21485884]

約数ペア:

[(1, 21485884), (2, 10742942), (4, 5371471), (7, 3069412), (14, 1534706), (19, 1130836), (28, 767353), (38, 565418), (76, 282709), (133, 161548), (266, 80774), (532, 40387)]