19521568

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1789}}^1$

素因数の和:1841

約数の個数: 48

約数和(自身を含む): 43303680

約数和(自身を除く): 23782112

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1789, 2728, 3578, 5456, 7156, 10912, 14312, 19679, 28624, 39358, 55459, 57248, 78716, 110918, 157432, 221836, 314864, 443672, 610049, 629728, 887344, 1220098, 1774688, 2440196, 4880392, 9760784, 19521568]

約数ペア:

[(1, 19521568), (2, 9760784), (4, 4880392), (8, 2440196), (11, 1774688), (16, 1220098), (22, 887344), (31, 629728), (32, 610049), (44, 443672), (62, 314864), (88, 221836), (124, 157432), (176, 110918), (248, 78716), (341, 57248), (352, 55459), (496, 39358), (682, 28624), (992, 19679), (1364, 14312), (1789, 10912), (2728, 7156), (3578, 5456)]