18103568

素因数分解:

$2^4\times 7^1\times {\mathrm{161639}}^1$

素因数の和:161654

約数の個数: 20

約数和(自身を含む): 40086720

約数和(自身を除く): 21983152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 161639, 323278, 646556, 1131473, 1293112, 2262946, 2586224, 4525892, 9051784, 18103568]

約数ペア:

[(1, 18103568), (2, 9051784), (4, 4525892), (7, 2586224), (8, 2262946), (14, 1293112), (16, 1131473), (28, 646556), (56, 323278), (112, 161639)]