19894016

素因数分解:

$2^8\times {\mathrm{77711}}^1$

素因数の和:77727

約数の個数: 18

約数和(自身を含む): 39710832

約数和(自身を除く): 19816816

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 77711, 155422, 310844, 621688, 1243376, 2486752, 4973504, 9947008, 19894016]

約数ペア:

[(1, 19894016), (2, 9947008), (4, 4973504), (8, 2486752), (16, 1243376), (32, 621688), (64, 310844), (128, 155422), (256, 77711)]