81321996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{3767}}^1$

素因数の和:4038

約数の個数: 48

約数和(自身を含む): 217760256

約数和(自身を除く): 136438260

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 257, 514, 771, 1028, 1542, 1799, 3084, 3598, 3767, 5397, 7196, 7534, 10794, 11301, 15068, 21588, 22602, 26369, 45204, 52738, 79107, 105476, 158214, 316428, 968119, 1936238, 2904357, 3872476, 5808714, 6776833, 11617428, 13553666, 20330499, 27107332, 40660998, 81321996]

約数ペア:

[(1, 81321996), (2, 40660998), (3, 27107332), (4, 20330499), (6, 13553666), (7, 11617428), (12, 6776833), (14, 5808714), (21, 3872476), (28, 2904357), (42, 1936238), (84, 968119), (257, 316428), (514, 158214), (771, 105476), (1028, 79107), (1542, 52738), (1799, 45204), (3084, 26369), (3598, 22602), (3767, 21588), (5397, 15068), (7196, 11301), (7534, 10794)]