21192496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{733}}^1$

素因数の和:893

約数の個数: 40

約数和(自身を含む): 44597840

約数和(自身を除く): 23405344

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 733, 1112, 1466, 1807, 2224, 2932, 3614, 5864, 7228, 9529, 11728, 14456, 19058, 28912, 38116, 76232, 101887, 152464, 203774, 407548, 815096, 1324531, 1630192, 2649062, 5298124, 10596248, 21192496]

約数ペア:

[(1, 21192496), (2, 10596248), (4, 5298124), (8, 2649062), (13, 1630192), (16, 1324531), (26, 815096), (52, 407548), (104, 203774), (139, 152464), (208, 101887), (278, 76232), (556, 38116), (733, 28912), (1112, 19058), (1466, 14456), (1807, 11728), (2224, 9529), (2932, 7228), (3614, 5864)]