21520928

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4703}}^1$

素因数の和:4737

約数の個数: 48

約数和(自身を含む): 49787136

約数和(自身を除く): 28266208

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4576, 4703, 9406, 18812, 37624, 51733, 61139, 75248, 103466, 122278, 150496, 206932, 244556, 413864, 489112, 672529, 827728, 978224, 1345058, 1655456, 1956448, 2690116, 5380232, 10760464, 21520928]

約数ペア:

[(1, 21520928), (2, 10760464), (4, 5380232), (8, 2690116), (11, 1956448), (13, 1655456), (16, 1345058), (22, 978224), (26, 827728), (32, 672529), (44, 489112), (52, 413864), (88, 244556), (104, 206932), (143, 150496), (176, 122278), (208, 103466), (286, 75248), (352, 61139), (416, 51733), (572, 37624), (1144, 18812), (2288, 9406), (4576, 4703)]