21750208

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19991}}^1$

素因数の和:20020

約数の個数: 28

約数和(自身を含む): 45701712

約数和(自身を除く): 23951504

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19991, 39982, 79964, 159928, 319856, 339847, 639712, 679694, 1279424, 1359388, 2718776, 5437552, 10875104, 21750208]

約数ペア:

[(1, 21750208), (2, 10875104), (4, 5437552), (8, 2718776), (16, 1359388), (17, 1279424), (32, 679694), (34, 639712), (64, 339847), (68, 319856), (136, 159928), (272, 79964), (544, 39982), (1088, 19991)]