19909408

素因数分解:

$2^5\times {\mathrm{557}}^1\times {\mathrm{1117}}^1$

素因数の和:1684

約数の個数: 24

約数和(自身を含む): 39302172

約数和(自身を除く): 19392764

約数列:

[1, 2, 4, 8, 16, 32, 557, 1114, 1117, 2228, 2234, 4456, 4468, 8912, 8936, 17824, 17872, 35744, 622169, 1244338, 2488676, 4977352, 9954704, 19909408]

約数ペア:

[(1, 19909408), (2, 9954704), (4, 4977352), (8, 2488676), (16, 1244338), (32, 622169), (557, 35744), (1114, 17872), (1117, 17824), (2228, 8936), (2234, 8912), (4456, 4468)]