16855785

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 30970368

約数和(自身を除く): 14114583

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 281, 387, 465, 645, 843, 1333, 1395, 1405, 1935, 2529, 3999, 4215, 6665, 8711, 11997, 12083, 12645, 19995, 26133, 36249, 43555, 59985, 60415, 78399, 108747, 130665, 181245, 374573, 391995, 543735, 1123719, 1872865, 3371157, 5618595, 16855785]

約数ペア:

[(1, 16855785), (3, 5618595), (5, 3371157), (9, 1872865), (15, 1123719), (31, 543735), (43, 391995), (45, 374573), (93, 181245), (129, 130665), (155, 108747), (215, 78399), (279, 60415), (281, 59985), (387, 43555), (465, 36249), (645, 26133), (843, 19995), (1333, 12645), (1395, 12083), (1405, 11997), (1935, 8711), (2529, 6665), (3999, 4215)]