21391168

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19661}}^1$

素因数の和:19690

約数の個数: 28

約数和(自身を含む): 44947332

約数和(自身を除く): 23556164

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19661, 39322, 78644, 157288, 314576, 334237, 629152, 668474, 1258304, 1336948, 2673896, 5347792, 10695584, 21391168]

約数ペア:

[(1, 21391168), (2, 10695584), (4, 5347792), (8, 2673896), (16, 1336948), (17, 1258304), (32, 668474), (34, 629152), (64, 334237), (68, 314576), (136, 157288), (272, 78644), (544, 39322), (1088, 19661)]