19877428

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{4597}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 37078272

約数和(自身を除く): 17200844

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 188, 1081, 2162, 4324, 4597, 9194, 18388, 105731, 211462, 216059, 422924, 432118, 864236, 4969357, 9938714, 19877428]

約数ペア:

[(1, 19877428), (2, 9938714), (4, 4969357), (23, 864236), (46, 432118), (47, 422924), (92, 216059), (94, 211462), (188, 105731), (1081, 18388), (2162, 9194), (4324, 4597)]