19957676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 19072084

約数列:

[1, 2, 4, 19, 31, 38, 43, 62, 76, 86, 124, 172, 197, 394, 589, 788, 817, 1178, 1333, 1634, 2356, 2666, 3268, 3743, 5332, 6107, 7486, 8471, 12214, 14972, 16942, 24428, 25327, 33884, 50654, 101308, 116033, 160949, 232066, 262601, 321898, 464132, 525202, 643796, 1050404, 4989419, 9978838, 19957676]

約数ペア:

[(1, 19957676), (2, 9978838), (4, 4989419), (19, 1050404), (31, 643796), (38, 525202), (43, 464132), (62, 321898), (76, 262601), (86, 232066), (124, 160949), (172, 116033), (197, 101308), (394, 50654), (589, 33884), (788, 25327), (817, 24428), (1178, 16942), (1333, 14972), (1634, 12214), (2356, 8471), (2666, 7486), (3268, 6107), (3743, 5332)]