19807744

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3517}}^1$

素因数の和:3546

約数の個数: 40

約数和(自身を含む): 43186968

約数和(自身を除く): 23379224

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3517, 5632, 7034, 14068, 28136, 38687, 56272, 77374, 112544, 154748, 225088, 309496, 450176, 618992, 900352, 1237984, 1800704, 2475968, 4951936, 9903872, 19807744]

約数ペア:

[(1, 19807744), (2, 9903872), (4, 4951936), (8, 2475968), (11, 1800704), (16, 1237984), (22, 900352), (32, 618992), (44, 450176), (64, 309496), (88, 225088), (128, 154748), (176, 112544), (256, 77374), (352, 56272), (512, 38687), (704, 28136), (1408, 14068), (2816, 7034), (3517, 5632)]