18836168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1303}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 38337600

約数和(自身を除く): 19501432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1303, 1807, 2606, 3614, 5212, 7228, 10424, 14456, 16939, 33878, 67756, 135512, 181117, 362234, 724468, 1448936, 2354521, 4709042, 9418084, 18836168]

約数ペア:

[(1, 18836168), (2, 9418084), (4, 4709042), (8, 2354521), (13, 1448936), (26, 724468), (52, 362234), (104, 181117), (139, 135512), (278, 67756), (556, 33878), (1112, 16939), (1303, 14456), (1807, 10424), (2606, 7228), (3614, 5212)]