211165335

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 399662640

約数和(自身を除く): 188497305

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 257, 279, 285, 465, 589, 771, 855, 961, 1285, 1395, 1767, 2313, 2883, 2945, 3855, 4805, 4883, 5301, 7967, 8649, 8835, 11565, 14415, 14649, 18259, 23901, 24415, 26505, 39835, 43245, 43947, 54777, 71703, 73245, 91295, 119505, 151373, 164331, 219735, 246977, 273885, 358515, 454119, 740931, 756865, 821655, 1234885, 1362357, 2222793, 2270595, 3704655, 4692563, 6811785, 11113965, 14077689, 23462815, 42233067, 70388445, 211165335]

約数ペア:

[(1, 211165335), (3, 70388445), (5, 42233067), (9, 23462815), (15, 14077689), (19, 11113965), (31, 6811785), (45, 4692563), (57, 3704655), (93, 2270595), (95, 2222793), (155, 1362357), (171, 1234885), (257, 821655), (279, 756865), (285, 740931), (465, 454119), (589, 358515), (771, 273885), (855, 246977), (961, 219735), (1285, 164331), (1395, 151373), (1767, 119505), (2313, 91295), (2883, 73245), (2945, 71703), (3855, 54777), (4805, 43947), (4883, 43245), (5301, 39835), (7967, 26505), (8649, 24415), (8835, 23901), (11565, 18259), (14415, 14649)]