858408817

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 1032192000

約数和(自身を除く): 173783183

約数列:

[1, 7, 31, 139, 149, 191, 217, 973, 1043, 1337, 4309, 4619, 5921, 20711, 26549, 28459, 30163, 32333, 41447, 144977, 185843, 199213, 642041, 823019, 882229, 3955801, 4494287, 5761133, 6175603, 27690607, 122629831, 858408817]

約数ペア:

[(1, 858408817), (7, 122629831), (31, 27690607), (139, 6175603), (149, 5761133), (191, 4494287), (217, 3955801), (973, 882229), (1043, 823019), (1337, 642041), (4309, 199213), (4619, 185843), (5921, 144977), (20711, 41447), (26549, 32333), (28459, 30163)]