21215432

素因数分解:

$2^3\times 7^2\times {\mathrm{54121}}^1$

素因数の和:54141

約数の個数: 24

約数和(自身を含む): 46274310

約数和(自身を除く): 25058878

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54121, 108242, 216484, 378847, 432968, 757694, 1515388, 2651929, 3030776, 5303858, 10607716, 21215432]

約数ペア:

[(1, 21215432), (2, 10607716), (4, 5303858), (7, 3030776), (8, 2651929), (14, 1515388), (28, 757694), (49, 432968), (56, 378847), (98, 216484), (196, 108242), (392, 54121)]